diff --git a/modules/core/src/ocl.cpp b/modules/core/src/ocl.cpp
index 8cd004723b6fe5bef0f81cda3ee864867c4bd9a1..9723aba508ce765f38687f33da18adf4e96b4387 100644
--- a/modules/core/src/ocl.cpp
+++ b/modules/core/src/ocl.cpp
@@ -2705,6 +2705,7 @@ public:
             }
             u->markHostCopyObsolete(false);
             clReleaseMemObject((cl_mem)u->handle);
+            u->handle = 0;
             u->currAllocator = u->prevAllocator;
             if(u->data && u->copyOnMap())
                 fastFree(u->data);
@@ -2717,6 +2718,7 @@ public:
             if(u->data && u->copyOnMap())
                 fastFree(u->data);
             clReleaseMemObject((cl_mem)u->handle);
+            u->handle = 0;
             delete u;
         }
     }