diff --git a/arch/xtensa/include/asm/mman.h b/arch/xtensa/include/asm/mman.h
index 41be9a1..3078901 100644
--- a/arch/xtensa/include/asm/mman.h
+++ b/arch/xtensa/include/asm/mman.h
@@ -84,6 +84,7 @@
 #define MADV_UNMERGEABLE 13		/* KSM may not merge identical pages */
 
 #define MADV_HUGEPAGE	14		/* Worth backing with hugepages */
+#define MADV_NOHUGEPAGE	15		/* Not worth backing with hugepages */
 
 /* compatibility flags */
 #define MAP_FILE	0