diff --git a/mm/page_poison.c b/mm/page_poison.c
index 98438985e1ed..b4f456437b7e 100644
--- a/mm/page_poison.c
+++ b/mm/page_poison.c
@@ -4,7 +4,6 @@
 #include <linux/mm.h>
 #include <linux/mmdebug.h>
 #include <linux/highmem.h>
-#include <linux/page_ext.h>
 #include <linux/poison.h>
 #include <linux/ratelimit.h>
 #include <linux/kasan.h>