diff --git a/test/xtest.c b/test/xtest.c
index 402d9ceba..e5e5241b7 100644
--- a/test/xtest.c
+++ b/test/xtest.c
@@ -30,6 +30,7 @@
 #include "inputstr.h"
 #include "scrnintstr.h"
 #include "exevents.h"
+#include "extinit.h"
 #include "xkbsrv.h"
 #include "xserver-properties.h"
 #include "syncsrv.h"