diff --git a/lib/compat/statusdatawriter.cpp b/lib/compat/statusdatawriter.cpp
index 699f0b605..75b188a2d 100644
--- a/lib/compat/statusdatawriter.cpp
+++ b/lib/compat/statusdatawriter.cpp
@@ -532,12 +532,7 @@ void StatusDataWriter::DumpCustomAttributes(std::ostream& fp, const CustomVarObj
 		} else
 			value = kv.second;
 
-		fp << "\t";
-
-		if (!CompatUtility::IsLegacyAttribute(object, kv.first))
-			fp << "_";
-
-		fp << kv.first << "\t" << value << "\n";
+		fp << "\t" "_" << kv.first << "\t" << value << "\n";
 	}
 
 	if (is_json)
diff --git a/lib/icinga/compatutility.cpp b/lib/icinga/compatutility.cpp
index 688560110..d2cbd8630 100644
--- a/lib/icinga/compatutility.cpp
+++ b/lib/icinga/compatutility.cpp
@@ -352,58 +352,14 @@ int CompatUtility::GetCheckableInNotificationPeriod(const Checkable::Ptr& checka
 }
 
 /* vars attr */
-
-bool CompatUtility::IsLegacyAttribute(const CustomVarObject::Ptr& object, const String& name)
-{
-	if ((name == "address" ||
-	    name == "address6") &&
-	    object->GetType() == DynamicType::GetByName("Host"))
-		return true;
-
-	if ((name == "address1" ||
-	    name == "address2" ||
-	    name == "address3" ||
-	    name == "address4" ||
-	    name == "address5" ||
-	    name == "address6" ||
-	    name == "email" ||
-	    name == "pager") &&
-	    object->GetType() == DynamicType::GetByName("User"))
-		return true;
-
-	if ((name == "notes" ||
-	    name == "action_url" ||
-	    name == "notes_url" ||
-	    name == "icon_image" ||
-	    name == "icon_image_alt") &&
-	    (object->GetType() == DynamicType::GetByName("Host") ||
-	    object->GetType() == DynamicType::GetByName("Service")))
-		return true;
-
-	return false;
-}
-
 Dictionary::Ptr CompatUtility::GetCustomAttributeConfig(const CustomVarObject::Ptr& object)
 {
 	Dictionary::Ptr vars = object->GetVars();
 
-	Dictionary::Ptr varsvars = new Dictionary();
-
 	if (!vars)
 		return Dictionary::Ptr();
 
-	String key;
-	Value value;
-
-	ObjectLock olock(vars);
-	BOOST_FOREACH(const Dictionary::Pair& kv, vars) {
-		if (kv.first.IsEmpty() || IsLegacyAttribute(object, kv.first))
-			continue;
-
-		varsvars->Set(kv.first, kv.second);
-	}
-
-	return varsvars;
+	return vars;
 }
 
 String CompatUtility::GetCustomAttributeConfig(const CustomVarObject::Ptr& object, const String& name)
diff --git a/lib/icinga/compatutility.hpp b/lib/icinga/compatutility.hpp
index 669c5fe10..edba4b9f9 100644
--- a/lib/icinga/compatutility.hpp
+++ b/lib/icinga/compatutility.hpp
@@ -103,7 +103,6 @@ public:
 	static std::set<UserGroup::Ptr> GetCheckableNotificationUserGroups(const Checkable::Ptr& checkable);
 
 	/* custom attribute */
-	static bool IsLegacyAttribute(const CustomVarObject::Ptr& object, const String& name);
 	static String GetCustomAttributeConfig(const CustomVarObject::Ptr& object, const String& name);
 	static Dictionary::Ptr GetCustomAttributeConfig(const CustomVarObject::Ptr& object);