diff --git a/mm/madvise.c b/mm/madvise.c
index 35ed4ab..fb1c86e 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -1071,8 +1071,8 @@ static bool is_valid_guard_vma(struct vm_area_struct *vma, bool allow_locked)
 
 static bool is_guard_pte_marker(pte_t ptent)
 {
-	return is_pte_marker(ptent) &&
-		is_guard_swp_entry(pte_to_swp_entry(ptent));
+	return is_swap_pte(ptent) &&
+	       is_guard_swp_entry(pte_to_swp_entry(ptent));
 }
 
 static int guard_install_pud_entry(pud_t *pud, unsigned long addr,