diff --git a/gapic/ads-templates/tests/unit/gapic/%name_%version/%sub/__init__.py b/gapic/ads-templates/tests/unit/gapic/%name_%version/%sub/__init__.py
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/gapic/templates/noxfile.py.j2 b/gapic/templates/noxfile.py.j2
index ee97ea01cb..b6225d867d 100644
--- a/gapic/templates/noxfile.py.j2
+++ b/gapic/templates/noxfile.py.j2
@@ -32,6 +32,7 @@ def mypy(session):
     session.install('.')
     session.run(
         'mypy',
+        '--explicit-package-bases',
         {%- if api.naming.module_namespace %}
         '{{ api.naming.module_namespace[0] }}',
         {%- else %}
diff --git a/noxfile.py b/noxfile.py
index a50376efe1..7dbe33ebc3 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -227,7 +227,7 @@ def showcase_mypy(
         session.chdir(lib)
 
         # Run the tests.
-        session.run("mypy", "google")
+        session.run("mypy", "--explicit-package-bases", "google")
 
 
 @nox.session(python="3.8")