diff --git a/Makefile b/Makefile
index d4cbb5b..0de2cae 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@ include config.mk
 # VARIABLES #
 #############
 
-CPU_ARCH := $(if $(shell which arch),\
+CPU_ARCH := $(if $(shell which arch 2>/dev/null),\
 	$(shell arch),\
 	$(shell lscpu | grep ^Architecture: | sed "s/^Architecture:[[:space:]]*\([[:alnum:][:punct:]]\+\).*/\1/"))
 IMAGE_PREFIX := $(if $(filter armv7%,$(CPU_ARCH)),armv7/)