diff --git a/modules/cvv/src/view/linematchview.cpp b/modules/cvv/src/view/linematchview.cpp
index b3d03d7e2..ca4c711c9 100644
--- a/modules/cvv/src/view/linematchview.cpp
+++ b/modules/cvv/src/view/linematchview.cpp
@@ -45,7 +45,7 @@ LineMatchView::LineMatchView(std::vector<cv::KeyPoint> leftKeyPoints,
 	qtutil::MatchScene *matchscene_ptr = matchscene.get();
 	int updateAreaDelay=std::min(std::max(matches.size(),
 					      std::max(leftKeyPoints.size(),
-						       rightKeyPoints.size()))/10,50lu);
+                                   rightKeyPoints.size()))/(std::size_t)10,(std::size_t)50);
 	matchscene_ptr->getLeftImage().setUpdateAreaDelay(updateAreaDelay);
 	matchscene_ptr->getRightImage().setUpdateAreaDelay(updateAreaDelay);
 
diff --git a/modules/cvv/src/view/pointmatchview.cpp b/modules/cvv/src/view/pointmatchview.cpp
index 1bd490a3e..a6ac4696b 100644
--- a/modules/cvv/src/view/pointmatchview.cpp
+++ b/modules/cvv/src/view/pointmatchview.cpp
@@ -30,7 +30,7 @@ PointMatchView::PointMatchView(std::vector<cv::KeyPoint> leftKeyPoints,
 	auto matchmnt = util::make_unique<qtutil::MatchManagement>(matches);
 
 	qtutil::MatchScene *matchscene_ptr = matchscene.get();
-	int updateAreaDelay=std::min(std::max(matches.size(),std::max(leftKeyPoints.size(),rightKeyPoints.size()))/10,50lu);
+	int updateAreaDelay=std::min(std::max(matches.size(),std::max(leftKeyPoints.size(),rightKeyPoints.size()))/(std::size_t)10,(std::size_t)50);
 	matchscene_ptr->getLeftImage().setUpdateAreaDelay(updateAreaDelay);
 	matchscene_ptr->getRightImage().setUpdateAreaDelay(updateAreaDelay);
 
diff --git a/modules/cvv/src/view/translationsmatchview.cpp b/modules/cvv/src/view/translationsmatchview.cpp
index 6ef3ff660..804c9e709 100644
--- a/modules/cvv/src/view/translationsmatchview.cpp
+++ b/modules/cvv/src/view/translationsmatchview.cpp
@@ -39,7 +39,7 @@ TranslationMatchView::TranslationMatchView(
 	auto keyPointmnt = util::make_unique<qtutil::KeyPointManagement>(allkeypoints);
 
 	qtutil::MatchScene *matchscene_ptr = matchscene.get();
-	int updateAreaDelay=std::min(std::max(matches.size(),std::max(leftKeyPoints.size(),rightKeyPoints.size()))/10,50lu);
+	int updateAreaDelay=std::min(std::max(matches.size(),std::max(leftKeyPoints.size(),rightKeyPoints.size()))/(std::size_t)10,(std::size_t)50);
 	matchscene_ptr->getLeftImage().setUpdateAreaDelay(updateAreaDelay);
 	matchscene_ptr->getRightImage().setUpdateAreaDelay(updateAreaDelay);