diff --git a/hello.py b/hello.py
index 72647ca..8c08dfb 100755
--- a/hello.py
+++ b/hello.py
@@ -4,7 +4,7 @@ def helloworld():
     pass
 
 def add_numbers(x, y):
-    pass
+    return x+y
 
 if __name__ == '__main__':
     # do something!