diff --git a/src/main/java/de/dhbwstuttgart/bytecode/funN/FunNGenerator.java b/src/main/java/de/dhbwstuttgart/bytecode/funN/FunNGenerator.java
index 6e2b57e7..46e219aa 100644
--- a/src/main/java/de/dhbwstuttgart/bytecode/funN/FunNGenerator.java
+++ b/src/main/java/de/dhbwstuttgart/bytecode/funN/FunNGenerator.java
@@ -55,11 +55,11 @@ public class FunNGenerator implements FunNUtilities{
 
         for (int currentParameter = 1; currentParameter <= numberArguments; currentParameter++){
             superFunNClassSignature.append(String.format("%s%d:%s",argumentGenericBase, currentParameter, objectSignature));
-            superFunNMethodSignature.append(applySignature( new GenericRefType(argumentGenericBase + currentParameter, null)));
+            superFunNMethodSignature.append(String.format("T%s;", applySignature( new GenericRefType(argumentGenericBase + currentParameter, null))));
             superFunNMethodDescriptor.append(objectSignature);
         }
         superFunNClassSignature.append(String.format("%s:%s>%s", returnGeneric, objectSignature, objectSignature));
-        superFunNMethodSignature.append(String.format(")%s", applySignature(new GenericRefType(returnGeneric, null))));
+        superFunNMethodSignature.append(String.format(")T%s;", applySignature(new GenericRefType(returnGeneric, null))));
         superFunNMethodDescriptor.append(String.format(")%s", objectSignature));
 
         ClassWriter classWriter = new ClassWriter(0);