diff --git a/src/gwin/gwin_keyboard.c b/src/gwin/gwin_keyboard.c
index 75e06e64..34a61a1a 100644
--- a/src/gwin/gwin_keyboard.c
+++ b/src/gwin/gwin_keyboard.c
@@ -300,7 +300,7 @@ static void SendKeyboardEvent(GKeyboardObject *gk) {
 	}
 #endif
 
-extern GVKeyTable GWIN_KEYBOARD_DEFAULT_LAYOUT;
+extern const GVKeyTable GWIN_KEYBOARD_DEFAULT_LAYOUT;
 
 // The button VMT table
 static const gwidgetVMT keyboardVMT = {