diff --git a/modules/tracking/src/multiTracker.hpp b/modules/tracking/src/multiTracker.hpp
index c98d7df66..9d363802c 100644
--- a/modules/tracking/src/multiTracker.hpp
+++ b/modules/tracking/src/multiTracker.hpp
@@ -53,6 +53,5 @@ namespace cv
 		std::vector<bool>& detect_flgs,	std::vector<Ptr<Tracker> >& trackers);
 	void ocl_detect_all(const Mat& img, const Mat& imgBlurred, std::vector<Rect2d>& res, std::vector < std::vector < tld::TLDDetector::LabeledPatch > > &patches,
 		std::vector<bool>& detect_flgs, std::vector<Ptr<Tracker> >& trackers);
-	std::vector <Rect2d> debugStack[10];
 }
 #endif
\ No newline at end of file