diff --git a/modules/imgproc/test/test_floodfill.cpp b/modules/imgproc/test/test_floodfill.cpp
index e46e9e120c..8293a12afd 100644
--- a/modules/imgproc/test/test_floodfill.cpp
+++ b/modules/imgproc/test/test_floodfill.cpp
@@ -501,6 +501,8 @@ _exit_:
     comp[6] = s1;
     comp[7] = s2;
     comp[8] = 0;
+
+    cvReleaseMemStorage(&st);
 }