diff --git a/onnxruntime/core/providers/cpu/nn/pool_attributes.h b/onnxruntime/core/providers/cpu/nn/pool_attributes.h
index 13796473dc..54f41f09f4 100644
--- a/onnxruntime/core/providers/cpu/nn/pool_attributes.h
+++ b/onnxruntime/core/providers/cpu/nn/pool_attributes.h
@@ -93,8 +93,8 @@ struct PoolAttributes {
   TensorShapeVector strides;
   TensorShapeVector dilations;  // Introduced in MaxPool_10
   // default_dilations is true if dilations is not set or all dilations are 1
-  bool default_dilations;
-  AutoPadType auto_pad;
+  bool default_dilations{false};
+  AutoPadType auto_pad{AutoPadType::NOTSET};
 
   TensorShapeVector SetOutputSize(const TensorShape& input_shape,
                                   int64_t output_channel,