diff --git a/python/paddle/fluid/contrib/slim/quantization/quantization_pass.py b/python/paddle/fluid/contrib/slim/quantization/quantization_pass.py
index 213033f883c283112a234d7f9dcb448b5680e6da..201ffc35dd397c9fc883f1ff258bac00ccc38cbf 100644
--- a/python/paddle/fluid/contrib/slim/quantization/quantization_pass.py
+++ b/python/paddle/fluid/contrib/slim/quantization/quantization_pass.py
@@ -1247,6 +1247,9 @@ class AddQuantDequantPass(object):
         "leaky_relu", "tanh", "swish"
     ]
 
+    # To be compatible with PaddleSlim, not remove _activation_type for now
+    _activation_type = ["relu", "relu6", "leaky_relu", "tanh", "swish"]
+
     def __init__(self,
                  scope=None,
                  place=None,