diff --git a/arch/xtensa/boot/Makefile b/arch/xtensa/boot/Makefile
index 294846117fc2..41ad60bb0fbc 100644
--- a/arch/xtensa/boot/Makefile
+++ b/arch/xtensa/boot/Makefile
@@ -9,8 +9,7 @@
 
 
 # KBUILD_CFLAGS used when building rest of boot (takes effect recursively)
-KBUILD_CFLAGS	+= -fno-builtin -Iarch/$(ARCH)/boot/include
-HOSTFLAGS	+= -Iarch/$(ARCH)/boot/include
+KBUILD_CFLAGS	+= -fno-builtin
 
 BIG_ENDIAN	:= $(shell echo __XTENSA_EB__ | $(CC) -E - | grep -v "\#")