diff --git a/xen/Makefile b/xen/Makefile
index 360fb6dcae..21832d6402 100644
--- a/xen/Makefile
+++ b/xen/Makefile
@@ -393,7 +393,7 @@ CFLAGS-$(CONFIG_CC_SPLIT_SECTIONS) += -ffunction-sections -fdata-sections
 
 CFLAGS += -nostdinc -fno-builtin -fno-common
 CFLAGS += -Werror -Wredundant-decls -Wwrite-strings -Wno-pointer-arith
-$(call cc-option-add,CFLAGS,CC,-Wdeclaration-after-statement)
+CFLAGS += -Wdeclaration-after-statement
 $(call cc-option-add,CFLAGS,CC,-Wvla)
 CFLAGS += -pipe -D__XEN__ -include $(srctree)/include/xen/config.h
 CFLAGS-$(CONFIG_DEBUG_INFO) += -g