1 files changed, 4 insertions, 2 deletions
diff --git a/src/H5O.c b/src/H5O.c
index b047bdd..401473f 100644
--- a/src/H5O.c
+++ b/src/H5O.c
@@ -4303,8 +4303,10 @@ H5O_copy_header_real(const H5O_loc_t *oloc_src,
     addr_map->is_locked = FALSE;
 
     /* Increment object header's reference count, if any descendents have created links to link to this object */
-    if(addr_map->inc_ref_count)
-        oh_dst->nlink += addr_map->inc_ref_count;
+    if(addr_map->inc_ref_count) {
+        H5_CHECK_OVERFLOW(addr_map->inc_ref_count, hsize_t, int);
+        oh_dst->nlink += (int)addr_map->inc_ref_count;
+    } /* end if */
 
     /* Insert destination object header in cache */
     if(H5AC_set(oloc_dst->file, dxpl_id, H5AC_OHDR, oloc_dst->addr, oh_dst, H5AC__DIRTIED_FLAG) < 0)