diff --git a/duoqin/files/mtk-kpd.kl b/duoqin/files/mtk-kpd.kl
index 39c1515..90d13f9 100644
--- a/duoqin/files/mtk-kpd.kl
+++ b/duoqin/files/mtk-kpd.kl
@@ -16,7 +16,7 @@ key 108   DPAD_DOWN
 
 key 158   BACK
 
-key 227   ALT
+key 227   ALT_LEFT
 key 231   CALL
 
 key 352   DPAD_CENTER