diff --git a/src/main/java/de/dhbwstuttgart/bytecode/BytecodeGenMethod.java b/src/main/java/de/dhbwstuttgart/bytecode/BytecodeGenMethod.java
index 8fcebbf0..5cbcfca9 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/BytecodeGenMethod.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/BytecodeGenMethod.java
@@ -831,8 +831,10 @@ public class BytecodeGenMethod implements StatementVisitor {
 						//ToDo Etienne: Double Check
 						RefTypeOrTPHOrWildcardOrGeneric returnType = resolver.resolve(methodCall.getType());
 						List<RefTypeOrTPHOrWildcardOrGeneric> argumentTypes = methodCall
-								.argTypes
+								.arglist
+								.getArguments()
 								.stream()
+								.map(TypableStatement::getType)
 								.map(resolver::resolve)
 								.collect(Collectors.toList());
 						FunNUtilities funNUtilities = FunNGenerator.getInstance();
diff --git a/src/main/java/de/dhbwstuttgart/bytecode/funN/FunNGenerator.java b/src/main/java/de/dhbwstuttgart/bytecode/funN/FunNGenerator.java
index 46e219aa..8bd512b8 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/funN/FunNGenerator.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/funN/FunNGenerator.java
@@ -82,7 +82,7 @@ public class FunNGenerator implements FunNUtilities{
                 .concat(argumentTypes.stream(), Stream.of(returnType))
                 .collect(Collectors.toList());
         RefType superFunN = new RefType(new JavaClassName(getSuperClassName(argumentTypes.size())), parameters , null);
-        StringBuilder funNClassSignature = new StringBuilder(objectSignature + (superFunN.acceptTV(new TypeToSignature())));
+        StringBuilder funNClassSignature = new StringBuilder(objectSignature + (superFunN.acceptTV(new TypeToSignature(false))));
         boolean containsGeneric = false;
 
         String genericSignature = "<";
diff --git a/src/main/java/de/dhbwstuttgart/bytecode/signature/TypeToSignature.java b/src/main/java/de/dhbwstuttgart/bytecode/signature/TypeToSignature.java
index 8e5a87dd..0026b85f 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/signature/TypeToSignature.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/signature/TypeToSignature.java
@@ -19,7 +19,7 @@ import de.dhbwstuttgart.syntaxtree.type.TypeVisitor;
 public class TypeToSignature implements TypeVisitor<String> {
 	private List<GenericsGeneratorResult> constraints;
 
-	private final boolean superFunN;
+	private final boolean specializedFunN;
 
 	public TypeToSignature() { this(new ArrayList<>(), true); }
 
@@ -29,16 +29,16 @@ public class TypeToSignature implements TypeVisitor<String> {
 		this(constraints, true);
 	}
 
-	public TypeToSignature(List<GenericsGeneratorResult> constraints, boolean superFunN){
+	public TypeToSignature(List<GenericsGeneratorResult> constraints, boolean specializedFunN){
 		this.constraints = constraints;
-		this.superFunN = superFunN;
+		this.specializedFunN = specializedFunN;
 	}
 
 	@Override
 	public String visit(RefType refType) {
 		if(refType.getName().toString().equals("void"))
 			return "V";
-		if (refType.getName().toString().matches("Fun\\d+\\$\\$") && !superFunN){
+		if (refType.getName().toString().matches("Fun\\d+\\$\\$") && specializedFunN){
 			FunNUtilities funNUtilities = FunNGenerator.getInstance();
 			return funNUtilities.getSpecializedSignature(funNUtilities.getArguments(refType.getParaList()), funNUtilities.getReturnType(refType.getParaList()));
 		}