diff --git a/talkhpb/docker-compose.yml b/talkhpb/docker-compose.yml
index e827f79..3f337ae 100644
--- a/talkhpb/docker-compose.yml
+++ b/talkhpb/docker-compose.yml
@@ -13,5 +13,6 @@ services:
       - SIGNALING_SECRET=${SIGNALING_SECRET} #this must be a long secretpasswordkey
       - TZ=${TIMEZONE} #Europe/Berlin
       - TALK_PORT=${TALK_PORT} #3478
+      - STUN_SERVER=${STUN_SERVER}
       - INTERNAL_SECRET=${INTERNAL_SECRET} #this must be a long secretpasswordkey
     restart: unless-stopped
\ No newline at end of file