diff --git a/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateRefType.java b/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateRefType.java
index 81ef371a..d82bbb71 100644
--- a/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateRefType.java
+++ b/src/main/java/de/dhbwstuttgart/intermediate/types/IntermediateRefType.java
@@ -13,7 +13,7 @@ import java.util.List;
  */
 public final class IntermediateRefType extends IntermediateInnerType{
 
-    private final List<IntermediateRefType> typParameters;
+    private final List<IntermediateInnerType> typParameters;
     private final JavaClassName className;
 
     /**
@@ -35,7 +35,7 @@ public final class IntermediateRefType extends IntermediateInnerType{
         this(className, new ArrayList<>());
     }
 
-    public IntermediateRefType(JavaClassName className, List<IntermediateRefType> typParameters){
+    public IntermediateRefType(JavaClassName className, List<IntermediateInnerType> typParameters){
         this.className = className;
         this.typParameters = Collections.unmodifiableList(typParameters);
     }
diff --git a/src/test/java/intermediate/types/IntermediateGenericTypeTest.java b/src/test/java/intermediate/types/IntermediateGenericTypeTest.java
index 3c711c4e..5ab67f3e 100644
--- a/src/test/java/intermediate/types/IntermediateGenericTypeTest.java
+++ b/src/test/java/intermediate/types/IntermediateGenericTypeTest.java
@@ -7,6 +7,10 @@ import org.junit.BeforeClass;
 import org.junit.Test;
 import org.objectweb.asm.Type;
 
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotEquals;
 
@@ -33,9 +37,10 @@ public class IntermediateGenericTypeTest {
         t = new IntermediateGenericType("T");
 
         sExtendsStringSignature = "TS;";
-        sExtendsStringDescriptor = "Ljava/lang/String;";
+        sExtendsStringDescriptor = "Ljava/util/List;";
         sExtendsString = new IntermediateGenericType("S",
-                new IntermediateRefType(new JavaClassName(Type.getInternalName(String.class))));
+                new IntermediateRefType(new JavaClassName(Type.getInternalName(List.class)),
+                        Arrays.asList(new IntermediateRefType(new JavaClassName(Type.getInternalName(Integer.class))))));
 
         rExtendsSSignature = "TR;";
         rExtendsSDescriptor = sExtendsStringDescriptor;
diff --git a/src/test/java/intermediate/types/IntermediateRefTypeTest.java b/src/test/java/intermediate/types/IntermediateRefTypeTest.java
index bc287a78..fdcca7e2 100644
--- a/src/test/java/intermediate/types/IntermediateRefTypeTest.java
+++ b/src/test/java/intermediate/types/IntermediateRefTypeTest.java
@@ -1,5 +1,6 @@
 package intermediate.types;
 
+import de.dhbwstuttgart.intermediate.types.IntermediateGenericType;
 import de.dhbwstuttgart.intermediate.types.IntermediateRefType;
 import de.dhbwstuttgart.parser.scope.JavaClassName;
 
@@ -23,6 +24,10 @@ public class IntermediateRefTypeTest {
     private static String listOfIntegerDescriptor;
     private static IntermediateRefType typeToTest_ListOfInteger;
 
+    private static String listOfTSignature;
+    private static String listOfTDescriptor;
+    private static IntermediateRefType typeToTest_ListOfT;
+
     private static String voidSignature;
     private static String voidDescriptor;
     private static IntermediateRefType typeToTest_void;
@@ -41,6 +46,12 @@ public class IntermediateRefTypeTest {
                 new JavaClassName(Type.getInternalName(List.class)),
                 Arrays.asList(typeToTest_Integer));
 
+        listOfTSignature = "Ljava/util/List<TT;>;";
+        listOfTDescriptor = "Ljava/util/List;";
+        typeToTest_ListOfT = new IntermediateRefType(
+                new JavaClassName(Type.getInternalName(List.class)),
+                Arrays.asList(new IntermediateGenericType("T")));
+
         voidSignature = "V";
         voidDescriptor = "V";
         typeToTest_void = new IntermediateRefType(new JavaClassName("void"));
@@ -66,6 +77,12 @@ public class IntermediateRefTypeTest {
     @Test
     public void DescriptorTest_List(){ assertEquals(listOfIntegerDescriptor, typeToTest_ListOfInteger.getDescriptor()); }
 
+    @Test
+    public void SignatureTest_ListT(){ assertEquals(listOfTSignature, typeToTest_ListOfT.getSignature()); }
+
+    @Test
+    public void DescriptorTest_ListT(){ assertEquals(listOfTDescriptor, typeToTest_ListOfT.getDescriptor()); }
+
     @Test
     public void SignatureTest_Void(){
         assertEquals(voidSignature, typeToTest_void.getSignature());