diff --git a/deploy/cpp/src/visualize.cpp b/deploy/cpp/src/visualize.cpp
index 3443848c1c56ecea071c70491efecea7d35d06fe..d6efc7f9f5c19c436d9bc32a7a7330a0749b9dd5 100644
--- a/deploy/cpp/src/visualize.cpp
+++ b/deploy/cpp/src/visualize.cpp
@@ -89,7 +89,7 @@ cv::Mat Visualize(const cv::Mat& img,
     cv::Mat bin_mask(boxes[i].mask.shape[1],
                      boxes[i].mask.shape[0],
                      CV_32FC1,
-                     boxes[i].mask.data.data());
+                     mask_data.data());
     cv::Mat full_mask = cv::Mat::zeros(vis_img.size(), CV_8UC1);
     bin_mask.copyTo(full_mask(roi));
     cv::Mat mask_ch[3];