diff --git a/CloudronManifest.json b/CloudronManifest.json
index b5ef38f..b3b3dcb 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -28,7 +28,6 @@
     "https://cloudron-app-screenshots.s3.amazonaws.com/org.matrix.synapse/606cd9d4ccc3bee11a49f91444a2dad8947cbc7c/2.png",
     "https://cloudron-app-screenshots.s3.amazonaws.com/org.matrix.synapse/606cd9d4ccc3bee11a49f91444a2dad8947cbc7c/3.png"
   ],
-  "optionalSso": true,
   "changelog": "file://CHANGELOG",
   "postInstallMessage": "file://POSTINSTALL.md",
   "minBoxVersion": "5.1.4",