diff --git a/miext/cw/cw.h b/miext/cw/cw.h
index 67ce9cd31..167308eb6 100644
--- a/miext/cw/cw.h
+++ b/miext/cw/cw.h
@@ -25,6 +25,7 @@
 #include <dix-config.h>
 #endif
 
+#include "gcstruct.h"
 #include "picturestr.h"
 
 /*