diff --git a/panda/src/gobj/videoTexture.h b/panda/src/gobj/videoTexture.h
index b67c6f27b9..6c00dbb9af 100644
--- a/panda/src/gobj/videoTexture.h
+++ b/panda/src/gobj/videoTexture.h
@@ -22,6 +22,7 @@
 #include "pandabase.h"
 #include "texture.h"
 #include "animInterface.h"
+#include "clockObject.h"
 
 ////////////////////////////////////////////////////////////////////
 //       Class : VideoTexture