diff --git a/python/paddle/fluid/tests/unittests/mkldnn/test_matmul_mkldnn_op.py b/python/paddle/fluid/tests/unittests/mkldnn/test_matmul_mkldnn_op.py
index 51869c8106502..4ab15ac448047 100644
--- a/python/paddle/fluid/tests/unittests/mkldnn/test_matmul_mkldnn_op.py
+++ b/python/paddle/fluid/tests/unittests/mkldnn/test_matmul_mkldnn_op.py
@@ -445,7 +445,6 @@ def set_op_type(self):
 
     def setUp(self):
         self.set_op_type()
-        self.op_type = "matmul"
         self._cpu_only = True
         self.use_mkldnn = True
         self.init_data_type()