diff --git a/onnx2fluid/onnx2fluid/symbolic.py b/onnx2fluid/onnx2fluid/symbolic.py
index b45794ad90cbc19791c2659e0c5d7169ae3fd52b..fa407381bbe01541bb5cf7d4ef196febf6b83d4b 100644
--- a/onnx2fluid/onnx2fluid/symbolic.py
+++ b/onnx2fluid/onnx2fluid/symbolic.py
@@ -413,6 +413,7 @@ def _global_pool(prog, pool_type, inputs, outputs, attrs, value_infos, name=''):
             global_pooling=True,
             adaptive=False,
             pooling_type=pool_type,
+            ksize=[-1, -1],
         ),
     )