diff --git a/modules/objdetect/src/hog.cpp b/modules/objdetect/src/hog.cpp
index 389fa09347..9ba4a7bba2 100644
--- a/modules/objdetect/src/hog.cpp
+++ b/modules/objdetect/src/hog.cpp
@@ -858,6 +858,7 @@ void HOGDescriptor::detect(const Mat& img,
     Size winStride, Size padding, const vector<Point>& locations) const
 {
     hits.clear();
+    weights.clear();
     if( svmDetector.empty() )
         return;