diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index b777cde9f..6b38eb496 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -43,7 +43,7 @@ jobs:
         run: pdm run ruff format . --check
 
       - name: Run mypy
-        run: pdm mypy --show-error-codes
+        run: pdm mypy
 
       - name: Lint
         run: pdm run ruff check .
diff --git a/pyproject.toml b/pyproject.toml
index d2ff2c87a..f8b07853e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -108,7 +108,7 @@ includes = [
 [tool.pdm.scripts]
 lint = "ruff check --fix ."
 format = "ruff format ."
-mypy = "mypy openapi_python_client"
+mypy = "mypy openapi_python_client --show-error-codes"
 check = { composite = ["lint", "format", "mypy", "test"] }
 regen = {composite = ["regen_e2e", "regen_integration"]}
 e2e = "pytest openapi_python_client end_to_end_tests/test_end_to_end.py"