diff --git a/sys/dev/xen/grant_table/grant_table.c b/sys/dev/xen/grant_table/grant_table.c
index 2a5c4276d302..b5e9dd1beb3a 100644
--- a/sys/dev/xen/grant_table/grant_table.c
+++ b/sys/dev/xen/grant_table/grant_table.c
@@ -245,6 +245,7 @@ gnttab_end_foreign_access_references(u_int count, grant_ref_t *refs)
 		gnttab_free_count += count;
 		gnttab_entry(tail) = gnttab_free_head;
 		gnttab_free_head = head;
+		check_free_callbacks();
 		mtx_unlock(&gnttab_list_lock);
 	}
 }