diff --git a/modules/flann/include/opencv2/flann/kmeans_index.h b/modules/flann/include/opencv2/flann/kmeans_index.h
index 226fc71f3..98ad0c86e 100644
--- a/modules/flann/include/opencv2/flann/kmeans_index.h
+++ b/modules/flann/include/opencv2/flann/kmeans_index.h
@@ -874,6 +874,8 @@ private:
             computeClustering(node->childs[c],indices+start, end-start, branching, level+1);
             start=end;
         }
+
+        delete[] centers;
     }