diff --git a/packages/core/src/collections/settings.ts b/packages/core/src/collections/settings.ts
index b780ee31d..cb8c850ef 100644
--- a/packages/core/src/collections/settings.ts
+++ b/packages/core/src/collections/settings.ts
@@ -157,7 +157,7 @@ export class Settings implements ICollection {
   getTrashCleanupInterval() {
     const t = this.get("trashCleanupInterval");
     // stored as a string in db, need conversion before use
-    return Number(t);
+    return Number(t) as TrashCleanupInterval;
   }
 
   setDefaultNotebook(item: string | undefined) {