1 files changed, 1 insertions, 5 deletions
diff --git a/synapse/handlers/cas_handler.py b/synapse/handlers/cas_handler.py
index 0f342c607b..21b6bc4992 100644
--- a/synapse/handlers/cas_handler.py
+++ b/synapse/handlers/cas_handler.py
@@ -99,11 +99,7 @@ class CasHandler:
         Returns:
             The URL to use as a "service" parameter.
         """
-        return "%s%s?%s" % (
-            self._cas_service_url,
-            "/_matrix/client/r0/login/cas/ticket",
-            urllib.parse.urlencode(args),
-        )
+        return "%s?%s" % (self._cas_service_url, urllib.parse.urlencode(args),)
 
     async def _validate_ticket(
         self, ticket: str, service_args: Dict[str, str]