--- Makefile	2015-03-16 21:50:24.000000000 +0100
+++ Makefile	2017-07-16 18:32:06.936576996 +0200
@@ -40,7 +40,7 @@
 check:
 	find base -name .svn -prune \
 	    -or -type f -not \( -name "*.sed" -or -name "*.txt" -or -name "*.cfg" \) -print0 \
-	| xargs -0 -n1 -- $(BUSYBOX) ash -n
+	| ${BUSYBOX} xargs -null -n1 -- $(BUSYBOX) ash -n
 
 clean:
 	-rm -f $(PKG)*.tar.bz2