diff --git a/scripts/nmk/scripts/include.mk b/scripts/nmk/scripts/include.mk
index ee0e32f62..c1c1e94af 100644
--- a/scripts/nmk/scripts/include.mk
+++ b/scripts/nmk/scripts/include.mk
@@ -8,21 +8,20 @@ endif
 
 #
 # Common vars.
-SUBARCH := $(shell uname -m | sed       \
-                -e s/i.86/x86/          \
-                -e s/x86_64/x86/        \
-                -e s/sun4u/sparc64/     \
-                -e s/arm.*/arm/         \
-                -e s/sa110/arm/         \
-                -e s/s390x/s390/        \
-                -e s/parisc64/parisc/   \
-                -e s/ppc64.*/ppc64/     \
-                -e s/mips.*/mips/       \
-                -e s/sh[234].*/sh/      \
+SUBARCH ?= $(shell uname -m)
+ARCH	?= $(shell echo $(SUBARCH) | sed	\
+                -e s/i.86/x86/			\
+                -e s/x86_64/x86/		\
+                -e s/sun4u/sparc64/		\
+                -e s/arm.*/arm/			\
+                -e s/sa110/arm/			\
+                -e s/s390x/s390/		\
+                -e s/parisc64/parisc/		\
+                -e s/ppc64.*/ppc64/		\
+                -e s/mips.*/mips/		\
+                -e s/sh[234].*/sh/		\
                 -e s/aarch64.*/aarch64/)
 
-ARCH		?= $(SUBARCH)
-
 export SUBARCH ARCH
 
 ifndef ____nmk_defined__tools