diff --git a/ext/opencv/gstfacedetect.cpp b/ext/opencv/gstfacedetect.cpp
index 64a6fb4568..58d224f916 100644
--- a/ext/opencv/gstfacedetect.cpp
+++ b/ext/opencv/gstfacedetect.cpp
@@ -76,10 +76,14 @@
 #  include <config.h>
 #endif
 
+using namespace std;
+
 #include <vector>
 
 #include "gstfacedetect.h"
-#include <opencv2/imgproc/imgproc_c.h>
+#if (CV_MAJOR_VERSION >= 3)
+#include <opencv2/imgproc.hpp>
+#endif
 
 GST_DEBUG_CATEGORY_STATIC (gst_face_detect_debug);
 #define GST_CAT_DEFAULT gst_face_detect_debug
@@ -557,7 +561,7 @@ gst_face_detect_run_detector (GstFaceDetect * filter,
     img_stddev = stddev.val[0];
   }
   if (img_stddev >= filter->min_stddev) {
-    Mat roi (filter->cvGray, r);
+    Mat roi (cv::cvarrToMat (filter->cvGray), r);
     detector->detectMultiScale (roi, faces, filter->scale_factor,
         filter->min_neighbors, filter->flags, cvSize (min_size_width,
             min_size_height), cvSize (0, 0));
@@ -589,7 +593,7 @@ gst_face_detect_transform_ip (GstOpencvVideoFilter * base, GstBuffer * buf,
     gboolean do_display = FALSE;
     gboolean post_msg = FALSE;
 
-    Mat mtxOrg (img, false);
+    Mat mtxOrg (cv::cvarrToMat (img));
 
     if (filter->display) {
       if (gst_buffer_is_writable (buf)) {