diff --git a/modules/ml/src/precomp.hpp b/modules/ml/src/precomp.hpp
index c6238c2e71..7868d0c0b6 100644
--- a/modules/ml/src/precomp.hpp
+++ b/modules/ml/src/precomp.hpp
@@ -356,6 +356,7 @@ namespace cv
         DTreeBestSplitFinder(){ tree = 0; node = 0; }
         DTreeBestSplitFinder( CvDTree* _tree, CvDTreeNode* _node);
         DTreeBestSplitFinder( const DTreeBestSplitFinder& finder, Split );
+        virtual ~DTreeBestSplitFinder() {}
         virtual void operator()(const BlockedRange& range);
         void join( DTreeBestSplitFinder& rhs );
         Ptr<CvDTreeSplit> bestSplit;