diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index b1a7c7d..de7bb28 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -81,7 +81,7 @@
 # Usage: cflags-y += $(call as-instr,instr,option1,option2)
 
 as-instr = $(call try-run,\
-	echo -e "$(1)" | $(CC) $(AFLAGS) -c -xassembler -o "$$TMP" -,$(2),$(3))
+	echo -e "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -xassembler -o "$$TMP" -,$(2),$(3))
 
 # cc-option
 # Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)