diff --git a/src/util.sh b/src/util.sh
index 7fe51c7a..7a3e3706 100644
--- a/src/util.sh
+++ b/src/util.sh
@@ -3157,7 +3157,11 @@ function ble/term/modifyOtherKeys/leave {
   if [[ $value == auto ]]; then
     value=1
     # 問題を起こす端末で無効化。
-    ble/term/modifyOtherKeys/.supported || value=
+    if [[ $TERM == xterm-kitty ]]; then
+      value=0 # Kitty は 1 では無効にならない。変な振る舞い
+    else
+      ble/term/modifyOtherKeys/.supported || value=
+    fi
   fi
   ble/term/modifyOtherKeys/.update "$value"
 }