diff --git a/apps/server/src/routes/api/options.ts b/apps/server/src/routes/api/options.ts
index 077c8899b..2eac956d9 100644
--- a/apps/server/src/routes/api/options.ts
+++ b/apps/server/src/routes/api/options.ts
@@ -93,6 +93,7 @@ const ALLOWED_OPTIONS = new Set<OptionNames>([
     "redirectBareDomain",
     "showLoginInShareTheme",
     "splitEditorOrientation",
+    "fileSystemSyncEnabled",
 
     // AI/LLM integration options
     "aiEnabled",