diff --git a/PGO/src/scanRegistration.cpp b/PGO/src/scanRegistration.cpp
index 03b4170..3f168c2 100755
--- a/PGO/src/scanRegistration.cpp
+++ b/PGO/src/scanRegistration.cpp
@@ -41,7 +41,7 @@
 #include "aloam_velodyne/common.h"
 #include "aloam_velodyne/tic_toc.h"
 #include <nav_msgs/Odometry.h>
-#include <opencv/cv.h>
+#include <opencv2/core.hpp>
 #include <pcl_conversions/pcl_conversions.h>
 #include <pcl/point_cloud.h>
 #include <pcl/point_types.h>