diff --git a/Xext/dpms.c b/Xext/dpms.c
index af1869cb2..597f5cf4d 100644
--- a/Xext/dpms.c
+++ b/Xext/dpms.c
@@ -32,6 +32,7 @@ Equipment Corporation.
 #include <X11/Xproto.h>
 
 #include "os/screensaver.h"
+#include "Xext/geext.h"
 
 #include "misc.h"
 #include "os.h"