diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c565de8f48e9..91ace8ca97e2 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1054,6 +1054,13 @@ __always_inline bool free_pages_prepare(struct page *page,
 		reset_page_owner(page, order);
 		page_table_check_free(page, order);
 		pgalloc_tag_sub(page, 1 << order);
+
+		/*
+		 * The page is isolated and accounted for.
+		 * Mark the codetag as empty to avoid accounting error
+		 * when the page is freed by unpoison_memory().
+		 */
+		clear_page_tag_ref(page);
 		return false;
 	}