diff --git a/Makefile b/Makefile
index 666d291..cf88003 100644
--- a/Makefile
+++ b/Makefile
@@ -803,7 +803,7 @@
 OBJCOPYFLAGS_u-boot.bin := -O binary
 
 binary_size_check: u-boot.bin System.map FORCE
-	@file_size=`stat -c %s u-boot.bin` ; \
+	@file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \
 	map_size=$(shell cat System.map | \
 		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
 		| bc); \