diff --git a/input.cpp b/input.cpp
index aae011b..41f391a 100644
--- a/input.cpp
+++ b/input.cpp
@@ -2665,7 +2665,7 @@ static void input_cb(struct input_event *ev, struct input_absinfo *absinfo, int
 
 				//  replace MENU key by RGUI to allow using Right Amiga on reduced keyboards
 				// (it also disables the use of Menu for OSD)
-				if (cfg.key_menu_as_rgui && code == 139) code = 126;
+				if (cfg.key_menu_as_rgui && code == KEY_COMPOSE) code = KEY_RIGHTMETA;
 
 				//Keyrah v2: USB\VID_18D8&PID_0002\A600/A1200_MULTIMEDIA_EXTENSION_VERSION
 				int keyrah = (cfg.keyrah_mode && (((((uint32_t)input[dev].vid) << 16) | input[dev].pid) == cfg.keyrah_mode));