diff --git a/Containers/talk/Dockerfile b/Containers/talk/Dockerfile
index 59ef714a..5a5b48a2 100644
--- a/Containers/talk/Dockerfile
+++ b/Containers/talk/Dockerfile
@@ -67,5 +67,5 @@ USER talk
 ENTRYPOINT ["start.sh"]
 CMD ["/usr/bin/supervisord", "-c", "/supervisord.conf"]
 
-HEALTHCHECK CMD (nc -z localhost 8081 && nc -z localhost 8188 && nc -z localhost 4222 && nc -z localhost $TALK_PORT) || exit 1
+HEALTHCHECK CMD (nc -z localhost 8081 && nc -z localhost 8188 && nc -z localhost 4222 && nc -z localhost "$TALK_PORT" && nc -z "$NC_DOMAIN" "$TALK_PORT") || exit 1
 LABEL com.centurylinklabs.watchtower.monitor-only="true"