diff --git a/paddle/py_paddle/util.py b/paddle/py_paddle/util.py
index fb337b8af378edee424cd5e8191eb66cbc16f010..1c9455fab5f9c1179bddffb100cd53fe8adfb6b1 100644
--- a/paddle/py_paddle/util.py
+++ b/paddle/py_paddle/util.py
@@ -199,7 +199,7 @@ def __monkeypatch_gradient_machine__():
         return (self.getNonStaticParameter(i)
                 for i in xrange(self.getNonStaticParameterSize()))
 
-    swig_paddle.GradientMachine.getParameters = getParameters
+    swig_paddle.GradientMachine.getNonStaticParameters = getNonStaticParameters
 
     def getLayerOutputs(self, layerNames):
         """