diff --git a/samples/api/get_depth_with_region.cc b/samples/api/get_depth_with_region.cc
index f9b5ff0..9dee888 100644
--- a/samples/api/get_depth_with_region.cc
+++ b/samples/api/get_depth_with_region.cc
@@ -178,6 +178,9 @@ int main(int argc, char *argv[]) {
     auto &&left_data = api->GetStreamData(Stream::LEFT);
     auto &&right_data = api->GetStreamData(Stream::RIGHT);
 
+    if (left_data.frame.empty() || right_data.frame.empty())
+      continue;
+
     cv::Mat img;
     cv::hconcat(left_data.frame, right_data.frame, img);
     cv::imshow("frame", img);