diff --git a/docker-compose.yml b/docker-compose.yml
index 389ec86..7f12ea8 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -65,7 +65,7 @@ x-common-options: &common-options
                 { \
                     echo '#!/bin/sh -e'; \
                     echo 'if [ -t 1 ]; then tty_option=-t; fi'; \
-                    echo 'exec docker exec -i $$tty_option -w $$PWD '"${COMPOSE_PROJECT_NAME}_$${service_name}_1 $${command}"' "$$@"'; \
+                    echo 'exec docker exec -i $$tty_option -w $$PWD '"${COMPOSE_PROJECT_NAME}-$${service_name}-1 $${command}"' "$$@"'; \
                 } | sudo tee /usr/local/bin/$$command_name
                 sudo chmod +x /usr/local/bin/$$command_name
             done