diff --git a/components/rgbd-sources/src/algorithms/fixstars_sgm.cpp b/components/rgbd-sources/src/algorithms/fixstars_sgm.cpp
index 1ba4bb85224224d8b1ef07b804ef24531569b2c3..24d1435cd67d14208992d74649f3334136488466 100644
--- a/components/rgbd-sources/src/algorithms/fixstars_sgm.cpp
+++ b/components/rgbd-sources/src/algorithms/fixstars_sgm.cpp
@@ -29,7 +29,7 @@ void FixstarsSGM::compute(const cv::Mat &l, const cv::Mat &r, cv::Mat &disp) {
 			sgm::StereoSGM::Parameters(10,120,0.95f,true));
 	}
 
-	disp = Mat(cv::Size(l.cols, l.rows), CV_16UC1);
+	disp = Mat(cv::Size(l.cols, l.rows), CV_16SC1);
 
 	//auto start = std::chrono::high_resolution_clock::now();
 	ssgm_->execute(lbw.data, rbw.data, disp.data);