diff --git a/panda/src/glxdisplay/Sources.pp b/panda/src/glxdisplay/Sources.pp
index 97bf895ee4..a31263f7ed 100644
--- a/panda/src/glxdisplay/Sources.pp
+++ b/panda/src/glxdisplay/Sources.pp
@@ -23,7 +23,5 @@
     glxGraphicsPipe.I glxGraphicsPipe.h \
     glxGraphicsWindow.I glxGraphicsWindow.h
 
-  #define IGATESCAN glxGraphicsPipe.h
-
 #end lib_target