--- ext/opencv/gstfacedetect.h.orig	2018-03-23 20:45:15 UTC
+++ ext/opencv/gstfacedetect.h
@@ -50,7 +50,7 @@
 
 #include <gst/gst.h>
 #include <opencv2/core/version.hpp>
-#include <cv.h>
+#include <opencv/cv.h>
 #include <gst/opencv/gstopencvvideofilter.h>
 #include <opencv2/objdetect/objdetect.hpp>