diff --git a/src/ManiaTemplates/Lib/MtTransformer.cs b/src/ManiaTemplates/Lib/MtTransformer.cs
index 812e9ab..26e326d 100644
--- a/src/ManiaTemplates/Lib/MtTransformer.cs
+++ b/src/ManiaTemplates/Lib/MtTransformer.cs
@@ -224,7 +224,10 @@ private string CreateSlotRenderMethod(MtComponent component, int scope, MtDataCo
         AppendSlotRenderArgumentsToList(methodArguments, parentComponent ?? component);
 
         //add component properties as arguments
-        AppendComponentPropertiesToMethodArgumentsList(parentComponent ?? component, methodArguments);
+        if (parentComponent != null)
+        {
+            AppendComponentPropertiesToMethodArgumentsList(parentComponent, methodArguments);
+        }
 
         var output = new StringBuilder(_maniaTemplateLanguage.FeatureBlockStart())
             .AppendLine("void " + CreateMethodCall(methodName, string.Join(',', methodArguments), "") + " {");
diff --git a/tests/ManiaTemplates.Tests/Lib/expected.tt b/tests/ManiaTemplates.Tests/Lib/expected.tt
index 0cfafe4..f49dc93 100644
--- a/tests/ManiaTemplates.Tests/Lib/expected.tt
+++ b/tests/ManiaTemplates.Tests/Lib/expected.tt
@@ -90,7 +90,7 @@ __insertedOneTimeManiaScripts.Add("FWKSFxnFcgdsXVn9dn5IW3isD6T8z+2eK6liK8rPSpU="
 </script>
 <#+
 }
-void Render_Slot_3_default(CRoot_ForEachLoop1 __data,Action __slotRenderer_default,int zIndex = 0,double x = 0.0,double y = 0.0,double w = 0.0,double h = 0.0) {
+void Render_Slot_3_default(CRoot_ForEachLoop1 __data,Action __slotRenderer_default) {
 var numbers = __data.numbers;
 var enabled = __data.enabled;
 var __index = __data.__index;
@@ -104,7 +104,7 @@ Render_Component_MtContext5(__data: __data, text: $"{(i)}, {(j)} at index {(__in
 __outerIndex7++;
 }
 }
-void Render_Slot_8_default(CRoot __data,Action __slotRenderer_default,int zIndex = 0,double x = 0.0,double y = 0.0,double w = 0.0,double h = 0.0) {
+void Render_Slot_8_default(CRoot __data,Action __slotRenderer_default) {
 var numbers = __data.numbers;
 var enabled = __data.enabled;
 #>
@@ -115,7 +115,7 @@ Render_Component_MtContext6(__data: __data, arg3: (new test()));
 </test>
 <#+
 }
-void Render_Slot_4_default(CRoot __data,Action __slotRenderer_default,int zIndex = 0,double x = 0.0,double y = 0.0,double w = 0.0,double h = 0.0) {
+void Render_Slot_4_default(CRoot __data,Action __slotRenderer_default) {
 var numbers = __data.numbers;
 var enabled = __data.enabled;
 Render_Component_MtContext2(__data: __data, __slotRenderer_default: () => Render_Slot_8_default(__data: __data, __slotRenderer_default: () => DoNothing()));