diff --git a/python/helpers/pydev/pydev_monkey.py b/python/helpers/pydev/pydev_monkey.py
index c5dd39a87870..8dd94ab1842d 100644
--- a/python/helpers/pydev/pydev_monkey.py
+++ b/python/helpers/pydev/pydev_monkey.py
@@ -100,8 +100,9 @@ def patch_arg_str_win(arg_str):
     args = str_to_args(new_arg_str)
     if not is_python(args[0]):
         return arg_str
-    art = args_to_str(patch_args(args))
-    return art
+    arg_str = args_to_str(patch_args(args))
+    pydev_log.debug("New args: %s"% arg_str)
+    return arg_str
 
 def monkey_patch_module(module, funcname, create_func):
     if hasattr(module, funcname):