diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 4986b0acab212e5780bb8e0547f4b53a51aac1a4..c242adf6bc8578846e1cc54ad0a931b052668381 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -6,7 +6,6 @@
 #define KASAN_SHADOW_SCALE_SIZE (1UL << KASAN_SHADOW_SCALE_SHIFT)
 #define KASAN_SHADOW_MASK       (KASAN_SHADOW_SCALE_SIZE - 1)
 
-#define KASAN_FREE_PAGE         0xFF  /* page was freed */
 #define KASAN_FREE_PAGE         0xFF  /* page was freed */
 #define KASAN_PAGE_REDZONE      0xFE  /* redzone for kmalloc_large allocations */
 #define KASAN_KMALLOC_REDZONE   0xFC  /* redzone inside slub object */