diff --git a/Makefile b/Makefile
index 2a0644024..49ffac71e 100644
--- a/Makefile
+++ b/Makefile
@@ -352,7 +352,7 @@ GEN_UBOOT = \
 $(obj)u-boot:		depend $(SUBDIRS) $(OBJS) $(LIBBOARD) $(LIBS) $(LDSCRIPT)
 		$(GEN_UBOOT)
 ifeq ($(CONFIG_KALLSYMS),y)
-		smap=`$(call SYSTEM_MAP,u-boot) | awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\0"}'` ; \
+		smap=`$(call SYSTEM_MAP,u-boot) | awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
 		$(CC) $(CFLAGS) -DSYSTEM_MAP="\"$${smap}\"" -c common/system_map.c -o $(obj)common/system_map.o
 		$(GEN_UBOOT) $(obj)common/system_map.o
 endif