diff --git a/packages/plugins/@nocobase/plugin-multi-portal/src/server/plugin.ts b/packages/plugins/@nocobase/plugin-multi-portal/src/server/plugin.ts
index 33e75ae2e75..a05f5a8ae88 100644
--- a/packages/plugins/@nocobase/plugin-multi-portal/src/server/plugin.ts
+++ b/packages/plugins/@nocobase/plugin-multi-portal/src/server/plugin.ts
@@ -3543,7 +3543,7 @@ export class PluginMultiPortalServer extends Plugin {
 
   async install() {
     const version = await this.app.version.get();
-    if (version === null) {
+    if (!version) {
       await ensureDefaultRoleMultiPortalAccess(this.db);
       await seedFreshMultiPortals(this.db);
     } else {