diff --git a/conf/main_ipv6.conf.sample b/conf/main_ipv6.conf.sample
index 17214e8..4f5b4dd 100644
--- a/conf/main_ipv6.conf.sample
+++ b/conf/main_ipv6.conf.sample
@@ -340,7 +340,7 @@ http_ports="$standard_http_ports"
 
 # - Mattermost (MM) Service
 # -
-mm_server_ips="$ext_1_ip"
+mm_server_ips=""
 forward_mm_server_ips=""
 
 # - UDP Ports IN and OUT used by MM Servive