diff --git a/mddatasetbuilder/__main__.py b/mddatasetbuilder/__main__.py
new file mode 100644
index 0000000..115f534
--- /dev/null
+++ b/mddatasetbuilder/__main__.py
@@ -0,0 +1,6 @@
+"""Module entry point."""
+
+from .datasetbuilder import _commandline
+
+if __name__ == "__main__":
+    _commandline()
diff --git a/tests/test_cli.py b/tests/test_cli.py
new file mode 100644
index 0000000..e36d3c0
--- /dev/null
+++ b/tests/test_cli.py
@@ -0,0 +1,9 @@
+"""Test command line interface."""
+
+import subprocess as sp
+import sys
+
+
+def test_module():
+    """Test python -m mddatasetbuilder."""
+    sp.check_output([sys.executable, "-m", "mddatasetbuilder", "-h"])