diff --git a/Makefile b/Makefile
index 11804d4b..851b97f4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-ARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/)
+ARCH := $(shell uname -m | sed -e 's/i.86/i386/' -e 's/sun4u/sparc64/' -e 's/arm.*/arm/' -e 's/sa110/arm/')
 
 # Include common definitions
 include common.mak