diff --git a/panda/src/sgattrib/composite2.cxx b/panda/src/sgattrib/composite2.cxx
index 700dbc6aed..7a325653cc 100644
--- a/panda/src/sgattrib/composite2.cxx
+++ b/panda/src/sgattrib/composite2.cxx
@@ -1,6 +1,4 @@
 
-#include "alphaTransformAttribute.cxx"
-#include "alphaTransformProperty.cxx"
 #include "alphaTransformTransition.cxx"
 #include "billboardTransition.cxx"
 #include "clipPlaneTransition.cxx"