diff --git a/README.md b/README.md
index 9219cae..e8c35bf 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 # How to
 
     docker-compose up -d
-    docker exec -it clickhouse-replication-example_ch-client_1 clickhouse-client -h ch-server-1
+    docker exec -it clickhouse-replication-example-ch-client-1 clickhouse-client -h ch-server-1
 
 
 # explanation