diff --git a/server/middlewares/oauth.ts b/server/middlewares/oauth.ts
index ab5301415..ffc1b7ca9 100644
--- a/server/middlewares/oauth.ts
+++ b/server/middlewares/oauth.ts
@@ -20,6 +20,8 @@ function authenticate (req: express.Request, res: express.Response, next: expres
         .end()
     }
 
+    res.locals.authenticated = true
+
     return next()
   })
 }
diff --git a/server/tests/plugins/plugin-router.ts b/server/tests/plugins/plugin-router.ts
index 5392acc51..24e6a1e83 100644
--- a/server/tests/plugins/plugin-router.ts
+++ b/server/tests/plugins/plugin-router.ts
@@ -53,7 +53,7 @@ describe('Test plugin helpers', function () {
         statusCodeExpected: 200
       })
 
-      expect(res.body.isAuthenticated).to.equal(undefined)
+      expect(res.body.isAuthenticated).to.equal(true)
 
       const secRes = await makeGetRequest({
         url: server.url,