diff --git a/extensions/physics-nodes/CCPhysicsDebugNode.cpp b/extensions/physics-nodes/CCPhysicsDebugNode.cpp
index 1e975619a2..e2c2ed308c 100644
--- a/extensions/physics-nodes/CCPhysicsDebugNode.cpp
+++ b/extensions/physics-nodes/CCPhysicsDebugNode.cpp
@@ -74,7 +74,7 @@ static void DrawShape(cpShape *shape, DrawNode *renderer)
     cpBody *body = cpShapeGetBody(shape);
     Color4F color = ColorForBody(body);
     
-    switch (shape->CP_PRIVATE(klass)->type)
+    switch (shape->klass->type)
     {
         case CP_CIRCLE_SHAPE:
         {