1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/app/frontend_proxy.py b/synapse/app/frontend_proxy.py
index b076fbe522..fc4b25de1c 100644
--- a/synapse/app/frontend_proxy.py
+++ b/synapse/app/frontend_proxy.py
@@ -228,7 +228,7 @@ def start(config_options):
             "Synapse frontend proxy", config_options
         )
     except ConfigError as e:
-        sys.stderr.write("\n" + e.message + "\n")
+        sys.stderr.write("\n" + str(e) + "\n")
         sys.exit(1)
 
     assert config.worker_app == "synapse.app.frontend_proxy"