diff --git a/x2paddle/op_mapper/onnx_op_mapper.py b/x2paddle/op_mapper/onnx_op_mapper.py
index 9912fc1c1fcb6031cda01ece4552be38ae36bf73..ea095ca0e0747a4a4f86fe589b50262d3ce7f4c8 100644
--- a/x2paddle/op_mapper/onnx_op_mapper.py
+++ b/x2paddle/op_mapper/onnx_op_mapper.py
@@ -44,7 +44,7 @@ class ONNXOpMapper(OpMapper):
             elif op in self.opset.default_op_mapping:
                 self.opset.directly_map(node)
             elif op in custom_layers:
-                self.opser.deal_custom_layer(node)
+                self.opset.deal_custom_layer(node)
             elif op in self.opset.elementwise_ops:
                 self.opset.elementwise_map(node)
         print("Nodes converted.")