diff --git a/tools/arch/mn10300/include/uapi/asm/mman.h b/tools/arch/mn10300/include/uapi/asm/mman.h
index 81faa5d..c1ea36d 100644
--- a/tools/arch/mn10300/include/uapi/asm/mman.h
+++ b/tools/arch/mn10300/include/uapi/asm/mman.h
@@ -1,4 +1,6 @@
 #ifndef TOOLS_ARCH_MN10300_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_MN10300_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
+/* MAP_32BIT is undefined on mn10300, fix it for perf */
+#define MAP_32BIT	0
 #endif