diff --git a/app/src/protyle/util/compatibility.ts b/app/src/protyle/util/compatibility.ts
index 4976a014c..be8234359 100644
--- a/app/src/protyle/util/compatibility.ts
+++ b/app/src/protyle/util/compatibility.ts
@@ -217,7 +217,13 @@ export const getLocalStorage = (cb: () => void) => {
             Constants.LOCAL_ZOOM, Constants.LOCAL_LAYOUTS, Constants.LOCAL_AI, Constants.LOCAL_PLUGINTOPUNPIN].forEach((key) => {
             if (typeof response.data[key] === "string") {
                 try {
-                    window.siyuan.storage[key] = Object.assign(defaultStorage[key], JSON.parse(response.data[key]));
+                    const parseData = JSON.parse(response.data[key]);
+                    if (typeof parseData === "number") {
+                        // https://github.com/siyuan-note/siyuan/issues/8852 Object.assign 会导致 number to Number
+                        window.siyuan.storage[key] = parseData;
+                    } else {
+                        window.siyuan.storage[key] = Object.assign(defaultStorage[key], parseData);
+                    }
                 } catch (e) {
                     window.siyuan.storage[key] = defaultStorage[key];
                 }