diff --git a/env.sh b/env.sh
index 4cd98c5..6ff1600 100644
--- a/env.sh
+++ b/env.sh
@@ -34,5 +34,5 @@
 docheck() { dotidy && dolint && dotest; }
 _envsh_domut() { mutmut run --paths-to-mutate "src/token.py,src/tokenize.py,src/parse.py" $@; }
 domut() { _envsh_domut; }
-domut_ci() { _envsh_domut --no-progress }
+domut_ci() { _envsh_domut --no-progress; }
 dobuild() { python build.py; }