diff --git a/src/de/dhbwstuttgart/syntaxtree/statement/LambdaExpression.java b/src/de/dhbwstuttgart/syntaxtree/statement/LambdaExpression.java
index eec84a109..8e21bd7cc 100755
--- a/src/de/dhbwstuttgart/syntaxtree/statement/LambdaExpression.java
+++ b/src/de/dhbwstuttgart/syntaxtree/statement/LambdaExpression.java
@@ -157,7 +157,10 @@ public class LambdaExpression extends Expr{
 			superParamTypes.add(new SuperWildcardType(pT.getOffset(), pT));
 		}
 		Type retType = method_body.getType();
-		ExtendsWildcardType extRetType = new ExtendsWildcardType(retType.getOffset(), retType);
+		Type extRetType = retType;
+		if(!(retType instanceof de.dhbwstuttgart.syntaxtree.type.Void)){
+			extRetType = new ExtendsWildcardType(retType.getOffset(), retType);
+		}
 		
 		ret.add(new SingleConstraint(new FunN(extRetType, superParamTypes).TYPE(assumptions, this),this.getType().TYPE(assumptions, this)));
 		return ret;
diff --git a/test/plugindevelopment/TypeInsertTests/FunNInsertTest.jav b/test/plugindevelopment/TypeInsertTests/FunNInsertTest.jav
index ba2dbbd99..fe76739d7 100644
--- a/test/plugindevelopment/TypeInsertTests/FunNInsertTest.jav
+++ b/test/plugindevelopment/TypeInsertTests/FunNInsertTest.jav
@@ -8,9 +8,6 @@ class FunNInsertTest{
 		var2 = b;
 		var3 = c;
 		};
-	
-
-	
 }
 
 class Object1{}