diff --git a/modules/objdetect/src/hog.cpp b/modules/objdetect/src/hog.cpp
index 32a6a21b92..bbdc0beb2a 100644
--- a/modules/objdetect/src/hog.cpp
+++ b/modules/objdetect/src/hog.cpp
@@ -1453,6 +1453,7 @@ void HOGDescriptor::detect(const Mat& img,
     Size winStride, Size padding, const std::vector<Point>& locations) const
 {
     hits.clear();
+    weights.clear();
     if( svmDetector.empty() )
         return;