diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 9c28268..cbe0b27 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -7,7 +7,7 @@ After you're done, please make sure that your changes don't upset
 [`pkgcheck`](https://wiki.gentoo.org/wiki/Pkgcheck). Run the following
 command and fix warnings and errors:
 
-	pkgcheck scan --exit error.warning,style --net .
+	pkgcheck scan --exit error,warning,style --net .
 
 Then send me the pull request. If you want, you can also create an issue along
 with it. But you don't have to.