diff --git a/sdk/lib/rtl/heap.c b/sdk/lib/rtl/heap.c
index 4d47ee2ec9a..4c51053e651 100644
--- a/sdk/lib/rtl/heap.c
+++ b/sdk/lib/rtl/heap.c
@@ -2204,6 +2204,7 @@ BOOLEAN NTAPI RtlFreeHeap(
         RtlSetLastWin32ErrorAndNtStatusFromNtStatus(STATUS_INVALID_PARAMETER);
         _SEH2_YIELD(return FALSE);
     }
+    _SEH2_END;
 
     /* Lock if necessary */
     if (!(Flags & HEAP_NO_SERIALIZE))