diff --git a/source-manifest.py b/source_manifest.py
similarity index 94%
rename from source-manifest.py
rename to source_manifest.py
index 88a57a9..6fa4e35 100755
--- a/source-manifest.py
+++ b/source_manifest.py
@@ -13,6 +13,7 @@ from sysa import SysA
 from sysc import SysC
 
 def main():
+    """Generate a source manifest for a system"""
     parser = argparse.ArgumentParser()
 
     parser.add_argument("-s", "--system",