diff --git a/RimeWithWeasel/RimeWithWeasel.cpp b/RimeWithWeasel/RimeWithWeasel.cpp
index 5fdc3eeaa..286923dff 100644
--- a/RimeWithWeasel/RimeWithWeasel.cpp
+++ b/RimeWithWeasel/RimeWithWeasel.cpp
@@ -288,6 +288,7 @@ BOOL RimeWithWeaselHandler::ProcessKeyEvent(KeyEvent keyEvent,
     if (isVimBackInCommandMode && RimeGetOption(_s(ipc_id), "vim_mode") &&
         !RimeGetOption(_s(ipc_id), "ascii_mode")) {
       RimeSetOption(_s(ipc_id), "ascii_mode", True);
+      RimeClearComposition(_s(ipc_id));
     }
   }
   _Respond(ipc_id, eat);