diff --git a/core/libs/facesengine/detection/opencv-face/opencvfacedetector_p.h b/core/libs/facesengine/detection/opencv-face/opencvfacedetector_p.h
--- a/core/libs/facesengine/detection/opencv-face/opencvfacedetector_p.h
+++ b/core/libs/facesengine/detection/opencv-face/opencvfacedetector_p.h
@@ -104,7 +104,7 @@
      * of the region of interest of this cascade (still relative to whole image).
      * For frontal face cascades, returns the given parameter unchanged.
      */
-    cv::Rect faceROI(const CvRect& faceRect) const;
+    cv::Rect faceROI(const cv::Rect& faceRect) const;
 
     /**
      * Verifying cascades: Returns the minSize parameter for cvHaarDetectObjects.
diff --git a/core/libs/facesengine/detection/opencv-face/opencvfacedetector_p.cpp b/core/libs/facesengine/detection/opencv-face/opencvfacedetector_p.cpp
--- a/core/libs/facesengine/detection/opencv-face/opencvfacedetector_p.cpp
+++ b/core/libs/facesengine/detection/opencv-face/opencvfacedetector_p.cpp
@@ -121,7 +121,7 @@
     return roi.isValid();
 }
 
-cv::Rect Cascade::faceROI(const CvRect& faceRect) const
+cv::Rect Cascade::faceROI(const cv::Rect& faceRect) const
 {
     return (cv::Rect(lround(faceRect.x + roi.x()      * faceRect.width),
                      lround(faceRect.y + roi.y()      * faceRect.height),