diff --git a/lib/config/aexpression.cpp b/lib/config/aexpression.cpp
index 0f6a4fb63..74c1ed570 100644
--- a/lib/config/aexpression.cpp
+++ b/lib/config/aexpression.cpp
@@ -445,7 +445,7 @@ Value AExpression::OpSetDivide(const AExpression *expr, const Dictionary::Ptr& l
 
 Value AExpression::OpIndexer(const AExpression *expr, const Dictionary::Ptr& locals)
 {
-	Dictionary::Ptr dict = locals->Get(expr->m_Operand1);
+	Dictionary::Ptr dict = OpVariable(expr, locals);
 	
 	if (!dict)
 		BOOST_THROW_EXCEPTION(ConfigError("Script variable '" + expr->m_Operand1 + "' not set in this scope."));
diff --git a/lib/config/applyrule.cpp b/lib/config/applyrule.cpp
index 23247db27..c31fd2b07 100644
--- a/lib/config/applyrule.cpp
+++ b/lib/config/applyrule.cpp
@@ -24,8 +24,8 @@ using namespace icinga;
 ApplyRule::RuleMap ApplyRule::m_Rules;
 ApplyRule::CallbackMap ApplyRule::m_Callbacks;
 
-ApplyRule::ApplyRule(const String& tmpl, const AExpression::Ptr& expression, const DebugInfo& di)
-	: m_Template(tmpl), m_Expression(expression), m_DebugInfo(di)
+ApplyRule::ApplyRule(const String& tmpl, const AExpression::Ptr& expression, const DebugInfo& di, const Dictionary::Ptr& scope)
+	: m_Template(tmpl), m_Expression(expression), m_DebugInfo(di), m_Scope(scope)
 { }
 
 String ApplyRule::GetTemplate(void) const
@@ -43,9 +43,14 @@ DebugInfo ApplyRule::GetDebugInfo(void) const
 	return m_DebugInfo;
 }
 
-void ApplyRule::AddRule(const String& sourceType, const String& tmpl, const String& targetType, const AExpression::Ptr& expression, const DebugInfo& di)
+Dictionary::Ptr ApplyRule::GetScope(void) const
 {
-	m_Rules[std::make_pair(sourceType, targetType)].push_back(ApplyRule(tmpl, expression, di));
+	return m_Scope;
+}
+
+void ApplyRule::AddRule(const String& sourceType, const String& tmpl, const String& targetType, const AExpression::Ptr& expression, const DebugInfo& di, const Dictionary::Ptr& scope)
+{
+	m_Rules[std::make_pair(sourceType, targetType)].push_back(ApplyRule(tmpl, expression, di, scope));
 }
 
 void ApplyRule::EvaluateRules(void)
diff --git a/lib/config/applyrule.h b/lib/config/applyrule.h
index e08ad98fb..3fba61006 100644
--- a/lib/config/applyrule.h
+++ b/lib/config/applyrule.h
@@ -42,8 +42,9 @@ public:
 	String GetTemplate(void) const;
 	AExpression::Ptr GetExpression(void) const;
 	DebugInfo GetDebugInfo(void) const;
+	Dictionary::Ptr GetScope(void) const;
 
-	static void AddRule(const String& sourceType, const String& tmpl, const String& targetType, const AExpression::Ptr& expression, const DebugInfo& di);
+	static void AddRule(const String& sourceType, const String& tmpl, const String& targetType, const AExpression::Ptr& expression, const DebugInfo& di, const Dictionary::Ptr& scope);
 	static void EvaluateRules(void);
 
 	static void RegisterCombination(const String& sourceType, const String& targetType, const ApplyRule::Callback& callback);
@@ -53,11 +54,12 @@ private:
 	String m_Template;
 	AExpression::Ptr m_Expression;
 	DebugInfo m_DebugInfo;
+	Dictionary::Ptr m_Scope;
 
 	static CallbackMap m_Callbacks;
 	static RuleMap m_Rules;
 
-	ApplyRule(const String& tmpl, const AExpression::Ptr& expression, const DebugInfo& di);
+	ApplyRule(const String& tmpl, const AExpression::Ptr& expression, const DebugInfo& di, const Dictionary::Ptr& scope);
 };
 
 }
diff --git a/lib/config/config_parser.yy b/lib/config/config_parser.yy
index 68bc238bd..8d09a22f2 100644
--- a/lib/config/config_parser.yy
+++ b/lib/config/config_parser.yy
@@ -460,6 +460,8 @@ object:
 
 		item->SetAbstract(m_Abstract);
 
+		item->SetScope(m_ModuleScope);
+
 		item->Compile()->Register();
 		item.reset();
 	}
@@ -713,6 +715,6 @@ apply: T_APPLY optional_template identifier identifier T_TO identifier T_WHERE r
 
 		AExpression::Ptr aexpr = make_shared<AExpression>(&AExpression::OpFunctionCall, "bool", make_shared<AExpression>(&AExpression::OpLiteral, arguments, @8), @8);
 
-		ApplyRule::AddRule($3, $4, $6, aexpr, DebugInfoRange(@1, @8));
+		ApplyRule::AddRule($3, $4, $6, aexpr, DebugInfoRange(@1, @8), m_ModuleScope);
 	}
 %%
diff --git a/lib/config/configitem.cpp b/lib/config/configitem.cpp
index 609e7f3ff..fe97ab0ae 100644
--- a/lib/config/configitem.cpp
+++ b/lib/config/configitem.cpp
@@ -49,9 +49,11 @@ ConfigItem::ItemMap ConfigItem::m_Items;
  */
 ConfigItem::ConfigItem(const String& type, const String& name,
     bool abstract, const AExpression::Ptr& exprl,
-    const std::vector<String>& parents, const DebugInfo& debuginfo)
+    const std::vector<String>& parents, const DebugInfo& debuginfo,
+    const Dictionary::Ptr& scope)
 	: m_Type(type), m_Name(name), m_Abstract(abstract), m_Validated(false),
-	  m_ExpressionList(exprl), m_ParentNames(parents), m_DebugInfo(debuginfo)
+	  m_ExpressionList(exprl), m_ParentNames(parents), m_DebugInfo(debuginfo),
+	  m_Scope(scope)
 {
 }
 
@@ -95,6 +97,11 @@ DebugInfo ConfigItem::GetDebugInfo(void) const
 	return m_DebugInfo;
 }
 
+Dictionary::Ptr ConfigItem::GetScope(void) const
+{
+	return m_Scope;
+}
+
 /**
  * Retrieves the expression list for the configuration item.
  *
@@ -145,9 +152,14 @@ Dictionary::Ptr ConfigItem::GetProperties(void)
 {
 	ASSERT(OwnsLock());
 
-	Dictionary::Ptr properties = make_shared<Dictionary>();
-	GetLinkedExpressionList()->Evaluate(properties);
-	return properties;
+	if (!m_Properties) {
+		m_Properties = make_shared<Dictionary>();
+		m_Properties->Set("__parent", m_Scope);
+		GetLinkedExpressionList()->Evaluate(m_Properties);
+		m_Properties->Remove("__parent");
+	}
+
+	return m_Properties;
 }
 
 /**
diff --git a/lib/config/configitem.h b/lib/config/configitem.h
index 2435d9a7c..7af2918dc 100644
--- a/lib/config/configitem.h
+++ b/lib/config/configitem.h
@@ -46,7 +46,7 @@ public:
 
 	ConfigItem(const String& type, const String& name, bool abstract,
 	    const AExpression::Ptr& exprl, const std::vector<String>& parents,
-	    const DebugInfo& debuginfo);
+	    const DebugInfo& debuginfo, const Dictionary::Ptr& scope);
 
 	String GetType(void) const;
 	String GetName(void) const;
@@ -62,6 +62,8 @@ public:
 
 	DebugInfo GetDebugInfo(void) const;
 
+	Dictionary::Ptr GetScope(void) const;
+
 	static ConfigItem::Ptr GetObject(const String& type,
 	    const String& name);
 	static bool HasObject(const String& type, const String& name);
@@ -80,9 +82,11 @@ private:
 	bool m_Validated; /** Whether this object has been validated. */
 
 	AExpression::Ptr m_ExpressionList;
+	Dictionary::Ptr m_Properties;
 	std::vector<String> m_ParentNames; /**< The names of parent configuration
 				       items. */
 	DebugInfo m_DebugInfo; /**< Debug information. */
+	Dictionary::Ptr m_Scope; /**< variable scope. */
 
 	AExpression::Ptr m_LinkedExpressionList;
 
diff --git a/lib/config/configitembuilder.cpp b/lib/config/configitembuilder.cpp
index a9f6f77e7..dbae3768e 100644
--- a/lib/config/configitembuilder.cpp
+++ b/lib/config/configitembuilder.cpp
@@ -55,6 +55,11 @@ void ConfigItemBuilder::SetAbstract(bool abstract)
 	m_Abstract = abstract;
 }
 
+void ConfigItemBuilder::SetScope(const Dictionary::Ptr& scope)
+{
+	m_Scope = scope;
+}
+
 void ConfigItemBuilder::AddParent(const String& parent)
 {
 	m_Parents.push_back(parent);
@@ -91,12 +96,12 @@ ConfigItem::Ptr ConfigItemBuilder::Compile(void)
 	}
 
 	Array::Ptr exprs = make_shared<Array>();
-	exprs->Add(make_shared<AExpression>(&AExpression::OpDict, m_Expressions, true, m_DebugInfo));
 	exprs->Add(make_shared<AExpression>(&AExpression::OpSet, "__type", make_shared<AExpression>(&AExpression::OpLiteral, m_Type, m_DebugInfo), m_DebugInfo));
 	exprs->Add(make_shared<AExpression>(&AExpression::OpSet, "__name", make_shared<AExpression>(&AExpression::OpLiteral, m_Name, m_DebugInfo), m_DebugInfo));
+	exprs->Add(make_shared<AExpression>(&AExpression::OpDict, m_Expressions, true, m_DebugInfo));
 	
 	AExpression::Ptr exprl = make_shared<AExpression>(&AExpression::OpDict, exprs, true, m_DebugInfo);
 
 	return make_shared<ConfigItem>(m_Type, m_Name, m_Abstract, exprl,
-	    m_Parents, m_DebugInfo);
+	    m_Parents, m_DebugInfo, m_Scope);
 }
diff --git a/lib/config/configitembuilder.h b/lib/config/configitembuilder.h
index 8a37359d4..74fa75df6 100644
--- a/lib/config/configitembuilder.h
+++ b/lib/config/configitembuilder.h
@@ -45,6 +45,7 @@ public:
 	void SetType(const String& type);
 	void SetName(const String& name);
 	void SetAbstract(bool abstract);
+	void SetScope(const Dictionary::Ptr& scope);
 
 	void AddParent(const String& parent);
 
@@ -60,6 +61,7 @@ private:
 				       items. */
 	Array::Ptr m_Expressions; /**< Expressions for this item. */
 	DebugInfo m_DebugInfo; /**< Debug information. */
+	Dictionary::Ptr m_Scope; /**< variable scope. */
 };
 
 }
diff --git a/lib/icinga/host-apply.cpp b/lib/icinga/host-apply.cpp
index 8ffe602ac..010987ba4 100644
--- a/lib/icinga/host-apply.cpp
+++ b/lib/icinga/host-apply.cpp
@@ -77,6 +77,7 @@ void Host::EvaluateApplyRules(const std::vector<ApplyRule>& rules)
 			ConfigItemBuilder::Ptr builder = make_shared<ConfigItemBuilder>(rule.GetDebugInfo());
 			builder->SetType("Service");
 			builder->SetName(name);
+			builder->SetScope(rule.GetScope());
 			builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet, "host", make_shared<AExpression>(&AExpression::OpLiteral, host->GetName(), rule.GetDebugInfo()), rule.GetDebugInfo()));
 
 			builder->AddParent(rule.GetTemplate());
diff --git a/lib/icinga/host.cpp b/lib/icinga/host.cpp
index 42d5d780d..386605473 100644
--- a/lib/icinga/host.cpp
+++ b/lib/icinga/host.cpp
@@ -155,6 +155,8 @@ void Host::UpdateSlaveServices(void)
 
 		builder->AddExpression(make_shared<AExpression>(&AExpression::OpDict, svc_exprl, true, di));
 
+		builder->SetScope(item->GetScope());
+
 		ConfigItem::Ptr serviceItem = builder->Compile();
 		serviceItem->Register();
 		DynamicObject::Ptr dobj = serviceItem->Commit();
diff --git a/lib/icinga/service-dependency.cpp b/lib/icinga/service-dependency.cpp
index 913950887..36b455bee 100644
--- a/lib/icinga/service-dependency.cpp
+++ b/lib/icinga/service-dependency.cpp
@@ -231,6 +231,8 @@ void Service::UpdateSlaveDependencies(void)
 
 			builder->AddExpression(make_shared<AExpression>(&AExpression::OpDict, sd_exprl, true, di));
 
+			builder->SetScope(item->GetScope());
+
 			ConfigItem::Ptr dependencyItem = builder->Compile();
 			dependencyItem->Register();
 			DynamicObject::Ptr dobj = dependencyItem->Commit();
diff --git a/lib/icinga/service-downtime.cpp b/lib/icinga/service-downtime.cpp
index 748b61858..d914284a4 100644
--- a/lib/icinga/service-downtime.cpp
+++ b/lib/icinga/service-downtime.cpp
@@ -380,6 +380,8 @@ void Service::UpdateSlaveScheduledDowntimes(void)
 
 		builder->AddExpression(make_shared<AExpression>(&AExpression::OpDict, sd_exprl, true, di));
 
+		builder->SetScope(item->GetScope());
+
 		ConfigItem::Ptr scheduledDowntimeItem = builder->Compile();
 		scheduledDowntimeItem->Register();
 		DynamicObject::Ptr dobj = scheduledDowntimeItem->Commit();
diff --git a/lib/icinga/service-notification.cpp b/lib/icinga/service-notification.cpp
index 344e33c0c..5fb711aa4 100644
--- a/lib/icinga/service-notification.cpp
+++ b/lib/icinga/service-notification.cpp
@@ -159,6 +159,8 @@ void Service::UpdateSlaveNotifications(void)
 
 		builder->AddExpression(make_shared<AExpression>(&AExpression::OpDict, nfc_exprl, true, di));
 
+		builder->SetScope(item->GetScope());
+
 		ConfigItem::Ptr notificationItem = builder->Compile();
 		notificationItem->Register();
 		DynamicObject::Ptr dobj = notificationItem->Commit();