diff --git a/python_modules/codegen.py b/python_modules/codegen.py
index 03c67e6d..75033dca 100644
--- a/python_modules/codegen.py
+++ b/python_modules/codegen.py
@@ -11,7 +11,7 @@ def camel_to_underscores(s, upper = False):
             res = res + c.upper()
         else:
             res = res + c.lower()
-        return res
+    return res
 
 def underscores_to_camel(s):
     res = ""