diff --git a/synapse/config/server.py b/synapse/config/server.py
index d7e6f20518..51eaf423ce 100644
--- a/synapse/config/server.py
+++ b/synapse/config/server.py
@@ -149,7 +149,6 @@ class ServerConfig(Config):
         # room directory.
         # secondary_directory_servers:
         #     - matrix.org
-        #     - vector.im
 
         # List of ports that Synapse should listen on, their purpose and their
         # configuration.