diff --git a/conf/turnserver.conf b/conf/turnserver.conf
index f3933d5..596e3b0 100644
--- a/conf/turnserver.conf
+++ b/conf/turnserver.conf
@@ -175,7 +175,7 @@ max-port=65535
 # Uncomment to use long-term credential mechanism.
 # By default no credentials mechanism is used (any user allowed).
 #
-lt-cred-mech
+#lt-cred-mech
 
 # This option is the opposite of lt-cred-mech.
 # (TURN Server with no-auth option allows anonymous access).