diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 696c491..e831549 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -36,4 +36,4 @@ jobs:
         poetry run pytest
     - name: Test with mypy
       run: |
-        poetry run mypy src/
+        poetry run mypy amdfan/
diff --git a/amdfan/commands.py b/amdfan/commands.py
index 082bbca..e6259e9 100644
--- a/amdfan/commands.py
+++ b/amdfan/commands.py
@@ -38,7 +38,7 @@
 def cli(
     ctx: click.Context,
     configuration: bool,
-    service: bool,
+    service: str,
 ) -> None:
     if configuration:
         print(DEFAULT_FAN_CONFIG)