--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -23,6 +23,7 @@ CROSS32AR		:= $(CROSS32_COMPILE)ar
 ifeq ($(HAS_BIARCH),y)
 ifeq ($(CROSS32_COMPILE),)
 CROSS32CC	:= $(CC) -m32
+CROSS32AR	:= $(AR)
 KBUILD_ARFLAGS	+= --target=elf32-powerpc
 endif
 endif
