diff --git a/samples/cpp/tutorial_code/calib3d/real_time_pose_estimation/src/Utils.cpp b/samples/cpp/tutorial_code/calib3d/real_time_pose_estimation/src/Utils.cpp
index a7ace3b7b8..fa2bad442e 100644
--- a/samples/cpp/tutorial_code/calib3d/real_time_pose_estimation/src/Utils.cpp
+++ b/samples/cpp/tutorial_code/calib3d/real_time_pose_estimation/src/Utils.cpp
@@ -13,8 +13,6 @@
 
 #include <opencv2/imgproc/imgproc.hpp>
 #include <opencv2/calib3d/calib3d.hpp>
-#include <opencv2/nonfree/features2d.hpp>
-
 
 // For text
 int fontFace = cv::FONT_ITALIC;