diff --git a/sdk/lib/rtl/heap.c b/sdk/lib/rtl/heap.c
index 847051df44c..6c9f040bf0f 100644
--- a/sdk/lib/rtl/heap.c
+++ b/sdk/lib/rtl/heap.c
@@ -2277,6 +2277,7 @@ BOOLEAN NTAPI RtlFreeHeap(
     PHEAP_VIRTUAL_ALLOC_ENTRY VirtualEntry;
     BOOLEAN Locked = FALSE;
     NTSTATUS Status;
+    BOOL b = FALSE;
 
     /* Freeing NULL pointer is a legal operation */
     if (!Ptr) return TRUE;
@@ -2301,20 +2302,28 @@ BOOLEAN NTAPI RtlFreeHeap(
             (HeapEntry->SegmentOffset >= HEAP_SEGMENTS))
         {
             /* This is an invalid block */
+            b = TRUE;
             DPRINT1("HEAP: Trying to free an invalid address %p!\n", Ptr);
             RtlSetLastWin32ErrorAndNtStatusFromNtStatus(STATUS_INVALID_PARAMETER);
-            _SEH2_YIELD(return FALSE);
+            //_SEH2_YIELD(return FALSE);
         }
     }
     _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
     {
+        b = TRUE;
         /* The pointer was invalid */
         DPRINT1("HEAP: Trying to free an invalid address %p!\n", Ptr);
         RtlSetLastWin32ErrorAndNtStatusFromNtStatus(STATUS_INVALID_PARAMETER);
-        _SEH2_YIELD(return FALSE);
+        //_SEH2_YIELD(return FALSE);
     }
     _SEH2_END;
 
+    if (b)
+    {
+        __debugbreak();
+        return FALSE;
+    }
+
     /* Lock if necessary */
     if (!(Flags & HEAP_NO_SERIALIZE))
     {