diff --git a/os/WaitFor.c b/os/WaitFor.c
index dac1b83b4..7316336fe 100644
--- a/os/WaitFor.c
+++ b/os/WaitFor.c
@@ -66,6 +66,7 @@ SOFTWARE.
 #include "os/busfault.h"
 #include "os/screensaver.h"
 
+#include "globals.h"
 #include "misc.h"
 #include "osdep.h"
 #include "dixstruct_priv.h"