diff --git a/panda/src/glxdisplay/glxdisplay_composite1.cxx b/panda/src/glxdisplay/glxdisplay_composite1.cxx
index 0bcbea077a..ecfe5224ac 100644
--- a/panda/src/glxdisplay/glxdisplay_composite1.cxx
+++ b/panda/src/glxdisplay/glxdisplay_composite1.cxx
@@ -1,5 +1,6 @@
 #include "config_glxdisplay.cxx"
 #include "glxGraphicsBuffer.cxx"
 #include "glxGraphicsPipe.cxx"
+#include "glxGraphicsPixmap.cxx"
 #include "glxGraphicsStateGuardian.cxx"
 #include "glxGraphicsWindow.cxx"