diff --git a/src/posix/cocoa/i_input.mm b/src/posix/cocoa/i_input.mm
index 87abe4298e..79315e1ced 100644
--- a/src/posix/cocoa/i_input.mm
+++ b/src/posix/cocoa/i_input.mm
@@ -45,6 +45,7 @@
 #include "doomstat.h"
 #include "v_video.h"
 #include "events.h"
+#include "g_game.h"
 
 
 EXTERN_CVAR(Int, m_use_mouse)