diff --git a/.well-known/matrix/client b/.well-known/matrix/client
index 29daec2..db724eb 100644
--- a/.well-known/matrix/client
+++ b/.well-known/matrix/client
@@ -5,6 +5,9 @@
   "m.identity_server": {
     "base_url": "https://vector.im"
   },
+  "org.matrix.msc3575.proxy": {
+    "url": "https://matrix.bah.io/sliding-sync"
+  },
   "io.element.e2ee": {
     "default": true,
     "secure_backup_required": false,
@@ -21,4 +24,4 @@
       }
     ]
   }
-}
\ No newline at end of file
+}