diff --git a/libraries/entities-renderer/src/EntityTreeRenderer.cpp b/libraries/entities-renderer/src/EntityTreeRenderer.cpp
index d9f1234674..24d22fee96 100644
--- a/libraries/entities-renderer/src/EntityTreeRenderer.cpp
+++ b/libraries/entities-renderer/src/EntityTreeRenderer.cpp
@@ -556,14 +556,13 @@ ModelPointer EntityTreeRenderer::allocateModel(const QString& url, float loading
     return model;
 }
 
-ModelPointer EntityTreeRenderer::updateModel(ModelPointer model, const QString& newUrl, const QString& collisionUrl) {
+ModelPointer EntityTreeRenderer::updateModel(ModelPointer model, const QString& newUrl) {
     // Only create and delete models on the thread that owns the EntityTreeRenderer
     if (QThread::currentThread() != thread()) {
         QMetaObject::invokeMethod(this, "updateModel", Qt::BlockingQueuedConnection,
             Q_RETURN_ARG(ModelPointer, model),
                 Q_ARG(ModelPointer, model),
-                Q_ARG(const QString&, newUrl),
-                Q_ARG(const QString&, collisionUrl));
+                Q_ARG(const QString&, newUrl));
 
         return model;
     }
diff --git a/libraries/entities-renderer/src/EntityTreeRenderer.h b/libraries/entities-renderer/src/EntityTreeRenderer.h
index 5c4bc04510..b1d875c2fb 100644
--- a/libraries/entities-renderer/src/EntityTreeRenderer.h
+++ b/libraries/entities-renderer/src/EntityTreeRenderer.h
@@ -76,7 +76,7 @@ public:
     Q_INVOKABLE ModelPointer allocateModel(const QString& url, float loadingPriority = 0.0f);
 
     /// if a renderable entity item needs to update the URL of a model, we will handle that for the entity
-    Q_INVOKABLE ModelPointer updateModel(ModelPointer original, const QString& newUrl, const QString& collisionUrl);
+    Q_INVOKABLE ModelPointer updateModel(ModelPointer original, const QString& newUrl);
 
     /// if a renderable entity item is done with a model, it should return it to us
     void releaseModel(ModelPointer model);