diff --git a/pubtools/exodus/__init__.py b/pubtools/exodus/__init__.py
deleted file mode 100644
index 8db66d3..0000000
--- a/pubtools/exodus/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-__path__ = __import__("pkgutil").extend_path(__path__, __name__)
diff --git a/setup.py b/setup.py
index 8f1273c..69b1861 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,4 @@
-from setuptools import find_packages, setup
+from setuptools import find_namespace_packages, setup
 
 
 def get_description():
@@ -22,7 +22,8 @@ def get_requirements():
 setup(
     name="pubtools-exodus",
     version="1.5.1",
-    packages=find_packages(exclude=["tests"]),
+    packages=find_namespace_packages(where="src"),
+    package_dir={"": "src"},
     include_package_data=True,
     url="https://github.com/release-engineering/pubtools-exodus",
     license="GNU General Public License",
diff --git a/pubtools/__init__.py b/src/pubtools/exodus/__init__.py
similarity index 100%
rename from pubtools/__init__.py
rename to src/pubtools/exodus/__init__.py
diff --git a/pubtools/exodus/_hooks/__init__.py b/src/pubtools/exodus/_hooks/__init__.py
similarity index 100%
rename from pubtools/exodus/_hooks/__init__.py
rename to src/pubtools/exodus/_hooks/__init__.py
diff --git a/pubtools/exodus/_hooks/pulp.py b/src/pubtools/exodus/_hooks/pulp.py
similarity index 100%
rename from pubtools/exodus/_hooks/pulp.py
rename to src/pubtools/exodus/_hooks/pulp.py
diff --git a/pubtools/exodus/_tasks/__init__.py b/src/pubtools/exodus/_tasks/__init__.py
similarity index 100%
rename from pubtools/exodus/_tasks/__init__.py
rename to src/pubtools/exodus/_tasks/__init__.py
diff --git a/pubtools/exodus/_tasks/push.py b/src/pubtools/exodus/_tasks/push.py
similarity index 100%
rename from pubtools/exodus/_tasks/push.py
rename to src/pubtools/exodus/_tasks/push.py
diff --git a/pubtools/exodus/gateway.py b/src/pubtools/exodus/gateway.py
similarity index 100%
rename from pubtools/exodus/gateway.py
rename to src/pubtools/exodus/gateway.py
diff --git a/pubtools/exodus/task.py b/src/pubtools/exodus/task.py
similarity index 100%
rename from pubtools/exodus/task.py
rename to src/pubtools/exodus/task.py
diff --git a/tox.ini b/tox.ini
index 55a77db..ebd60f7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,20 +10,20 @@ allowlist_externals=sh
 
 [testenv:static]
 commands=
-	sh -c 'pylint pubtools; test $(( $? & (1|2|4|32) )) = 0'
+	sh -c 'pylint src/pubtools/exodus; test $(( $? & (1|2|4|32) )) = 0'
 	black --check .
 	isort --check .
 
 [testenv:cov]
 usedevelop=true
 commands=
-	pytest --cov-report=html --cov=pubtools {posargs}
+	pytest --cov-report=html --cov=pubtools.exodus {posargs}
 
 [testenv:cov-ci]
 passenv=GITHUB_*
 usedevelop=true
 commands=
-	pytest --cov=pubtools {posargs}
+	pytest --cov=pubtools.exodus {posargs}
 	coveralls --service=github
 
 [testenv:docs]