diff --git a/app/src/protyle/hint/index.ts b/app/src/protyle/hint/index.ts
index b340c246e..5bed00525 100644
--- a/app/src/protyle/hint/index.ts
+++ b/app/src/protyle/hint/index.ts
@@ -6,7 +6,7 @@ import {
     focusByWbr,
     getEditorRange,
     getSelectionOffset,
-    getSelectionPosition, setLastNodeRange
+    getSelectionPosition,
 } from "../util/selection";
 import {genHintItemHTML, hintEmbed, hintRef, hintSlash} from "./extend";
 import {getSavePath, newFile} from "../../util/newFile";