diff --git a/python/paddle/fluid/dygraph/dygraph_to_static/convert_operators.py b/python/paddle/fluid/dygraph/dygraph_to_static/convert_operators.py
index aa87096869559f4e2cf93a4f5a95b0a7d077bb67..85eaa3da33b0f16814cef90517610dd22a658e18 100644
--- a/python/paddle/fluid/dygraph/dygraph_to_static/convert_operators.py
+++ b/python/paddle/fluid/dygraph/dygraph_to_static/convert_operators.py
@@ -32,7 +32,7 @@ def convert_attr(x, attr):
     if isinstance(x, Variable) and attr == "size":
         return x.size()
     else:
-        return getattr(value, attr)
+        return getattr(x, attr)
 
 
 def indexable(x, code=None):