diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
index 945ff80afbe6..30a69d6a34cb 100644
--- a/sys/vm/vm_page.c
+++ b/sys/vm/vm_page.c
@@ -4140,6 +4140,8 @@ vm_page_ps_test(vm_page_t m, int flags, vm_page_t skip_m)
        int i, npages;
 
        object = m->object;
+       if (skip_m != NULL && skip_m->object != object)
+               return (false);
        VM_OBJECT_ASSERT_LOCKED(object);
        npages = atop(pagesizes[m->psind]);