diff --git a/src/main/java/de/dhbwstuttgart/syntaxtree/factory/UnifyTypeFactory.java b/src/main/java/de/dhbwstuttgart/syntaxtree/factory/UnifyTypeFactory.java
index d7528fad..36cbf223 100644
--- a/src/main/java/de/dhbwstuttgart/syntaxtree/factory/UnifyTypeFactory.java
+++ b/src/main/java/de/dhbwstuttgart/syntaxtree/factory/UnifyTypeFactory.java
@@ -103,7 +103,7 @@ public class UnifyTypeFactory {
             }
             ret = new ReferenceType(t.getName().toString(),new TypeParams(params));
         }else{
-            ret = new ReferenceType(t.getName().toString());
+            ret = new ReferenceType(t.getName().toString(), false);
         }
         return ret;
     }
@@ -139,7 +139,7 @@ public class UnifyTypeFactory {
     }
 
     public static UnifyType convert(GenericRefType t, Boolean innerType){
-        return new ReferenceType(t.getParsedName());
+        return new ReferenceType(t.getParsedName(), true);
     }
 
     public static UnifyType convert(WildcardType t, Boolean innerType){
diff --git a/src/main/java/de/dhbwstuttgart/typeinference/unify/model/ReferenceType.java b/src/main/java/de/dhbwstuttgart/typeinference/unify/model/ReferenceType.java
index 4bd51b27..4627dc30 100644
--- a/src/main/java/de/dhbwstuttgart/typeinference/unify/model/ReferenceType.java
+++ b/src/main/java/de/dhbwstuttgart/typeinference/unify/model/ReferenceType.java
@@ -28,10 +28,10 @@ public class ReferenceType extends UnifyType {
 		return visitor.visit(this, ht);
 	}
 	
-	public ReferenceType(String name) {
+	public ReferenceType(String name, Boolean genericTypeVar) {
 		super(name, new TypeParams());
 		hashCode = 31 + 17 * typeName.hashCode() + 17 * typeParams.hashCode();
-		genericTypeVar = true;
+		this.genericTypeVar = genericTypeVar;
 	}
 	
 	public ReferenceType(String name, UnifyType... params) {