diff --git a/countries_list/README.md b/countries_list/README.md
index e4d970f..1af3eab 100644
--- a/countries_list/README.md
+++ b/countries_list/README.md
@@ -4,5 +4,5 @@ You need to set the `FLAG` environment variable for this challenge to work!
 
 ## Run the image
 ```bash
-docker run --rm --name countries_-_list --env FLAG='FLAG{SQLIMYFRIENDAGAIN}' -p 3767:80 -it pierre42100/countries-list
+docker run --rm --name countries_list --env FLAG='FLAG{SQLIMYFRIENDAGAIN}' -p 3767:80 -it pierre42100/countries-list
 ```
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