diff --git a/keyboards/ergodox/keymaps/ordinary/keymap.c b/keyboards/ergodox/keymaps/ordinary/keymap.c
index 302c41cc8d..5c01d96784 100644
--- a/keyboards/ergodox/keymaps/ordinary/keymap.c
+++ b/keyboards/ergodox/keymaps/ordinary/keymap.c
@@ -1,5 +1,6 @@
 #include "ergodox.h"
 #include "led.h"
+#include "mousekey.h"
 #include "debug.h"
 #include "action_layer.h"
 #include "action_util.h"