diff --git a/setup.cfg b/setup.cfg
index 953e11d..d8c9adb 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -156,7 +156,7 @@ deps =
     types-requests
 commands =
     python -m flake8 .
-    python -m mypy --ignore-missing-imports comicapi comictaggerlib comictalker
+    -python -m mypy --ignore-missing-imports comicapi comictaggerlib comictalker
 
 [testenv:clean]
 description = Clean development outputs