diff --git a/apps/main/src/lib/cleaner.ts b/apps/main/src/lib/cleaner.ts
index b2a45e6b56..bfeeb3628e 100644
--- a/apps/main/src/lib/cleaner.ts
+++ b/apps/main/src/lib/cleaner.ts
@@ -12,7 +12,7 @@ import { logger } from "~/logger"
 import { getMainWindow } from "~/window"
 
 import { t } from "./i18n"
-import { store } from "./store"
+import { store, StoreKey } from "./store"
 
 const require = createRequire(import.meta.url)
 const fastFolderSize = require("fast-folder-size") as any as typeof import("fast-folder-size")
@@ -101,7 +101,7 @@ export const clearCacheCronJob = () => {
   }
   timer = setInterval(
     async () => {
-      const hasLimit = store.get("cacheSizeLimit")
+      const hasLimit = store.get(StoreKey.CacheSizeLimit)
 
       if (!hasLimit) {
         return
diff --git a/apps/main/src/lib/store.ts b/apps/main/src/lib/store.ts
index 475eb1e8fb..edb1abf0c3 100644
--- a/apps/main/src/lib/store.ts
+++ b/apps/main/src/lib/store.ts
@@ -21,3 +21,7 @@ type StoreData = {
   } | null
 }
 export const store = new Store<StoreData>({ name: "db" })
+
+export enum StoreKey {
+  CacheSizeLimit = "cacheSizeLimit",
+}
diff --git a/apps/main/src/tipc/app.ts b/apps/main/src/tipc/app.ts
index dcd4d16e49..c8de0c2794 100644
--- a/apps/main/src/tipc/app.ts
+++ b/apps/main/src/tipc/app.ts
@@ -9,7 +9,7 @@ import { app, BrowserWindow, clipboard, dialog, shell } from "electron"
 
 import { registerMenuAndContextMenu } from "~/init"
 import { clearAllData, getCacheSize } from "~/lib/cleaner"
-import { store } from "~/lib/store"
+import { store, StoreKey } from "~/lib/store"
 import { registerAppTray } from "~/lib/tray"
 import { logger, revealLogFile } from "~/logger"
 import { cleanupOldRender, loadDynamicRenderEntry } from "~/updater/hot-updater"
@@ -290,7 +290,7 @@ ${content}
     shell.openPath(dir)
   }),
   getCacheLimit: t.procedure.action(async () => {
-    return store.get("cacheSizeLimit")
+    return store.get(StoreKey.CacheSizeLimit)
   }),
 
   clearCache: t.procedure.action(async () => {
@@ -318,9 +318,9 @@ ${content}
   limitCacheSize: t.procedure.input<number>().action(async ({ input }) => {
     logger.info("set limitCacheSize", input)
     if (input === 0) {
-      store.delete("cacheSizeLimit")
+      store.delete(StoreKey.CacheSizeLimit)
     } else {
-      store.set("cacheSizeLimit", input)
+      store.set(StoreKey.CacheSizeLimit, input)
     }
   }),