diff --git a/helloworld.py b/helloworld.py
index 59701dbe..e800b314 100755
--- a/helloworld.py
+++ b/helloworld.py
@@ -3,7 +3,7 @@
 """Top-level script to invoke helloworld implementation."""
 
 import sys
-import helloworld.main
+import helloworld.py
 
 if __name__ == '__main__':
     sys.exit(helloworld.main.main())