diff --git a/src/menu/menu.h b/src/menu/menu.h
index 153c79226..ceab87603 100644
--- a/src/menu/menu.h
+++ b/src/menu/menu.h
@@ -19,7 +19,7 @@ EXTERN_CVAR(Int, m_use_mouse);
 struct event_t;
 class FTexture;
 class FFont;
-enum EColorRange;
+enum EColorRange : int;
 class FPlayerClass;
 class FKeyBindings;
 
@@ -709,4 +709,4 @@ void M_InitVideoModesMenu ();
 void M_MarkMenus();
 
 
-#endif
\ No newline at end of file
+#endif