diff --git a/lib/base/string-script.cpp b/lib/base/string-script.cpp
index e72370e51..60af63dda 100644
--- a/lib/base/string-script.cpp
+++ b/lib/base/string-script.cpp
@@ -150,7 +150,7 @@ Object::Ptr String::GetPrototype(void)
 		prototype->Set("substr", new Function("String#substr", WrapFunction(StringSubstr), { "start", "len" }, true));
 		prototype->Set("upper", new Function("String#upper", WrapFunction(StringUpper), {}, true));
 		prototype->Set("lower", new Function("String#lower", WrapFunction(StringLower), {}, true));
-		prototype->Set("split", new Function("String#split", WrapFunction(StringSplit), {}, true));
+		prototype->Set("split", new Function("String#split", WrapFunction(StringSplit), { "delims" }, true));
 		prototype->Set("find", new Function("String#find", WrapFunction(StringFind), { "str", "start" }, true));
 		prototype->Set("contains", new Function("String#contains", WrapFunction(StringContains), { "str" }, true));
 		prototype->Set("replace", new Function("String#replace", WrapFunction(StringReplace), { "search", "replacement" }, true));
diff --git a/lib/icinga/macroprocessor.cpp b/lib/icinga/macroprocessor.cpp
index 37d5d48cc..2027ef82f 100644
--- a/lib/icinga/macroprocessor.cpp
+++ b/lib/icinga/macroprocessor.cpp
@@ -217,7 +217,7 @@ Value MacroProcessor::EvaluateFunction(const Function::Ptr& func, const Resolver
 
 	resolvers_this->Set("macro", new Function("macro (temporary)", boost::bind(&MacroProcessor::InternalResolveMacrosShim,
 	    _1, boost::cref(resolvers), cr, MacroProcessor::EscapeCallback(), resolvedMacros, useResolvedMacros,
-	    recursionLevel + 1)));
+	    recursionLevel + 1), { "str" }));
 	resolvers_this->Set("resolve_arguments", new Function("resolve_arguments (temporary)", boost::bind(&MacroProcessor::InternalResolveArgumentsShim,
 	    _1, boost::cref(resolvers), cr, resolvedMacros, useResolvedMacros,
 	    recursionLevel + 1)));