diff -u a/Makefile b/Makefile
--- a/Makefile	2015-04-05 19:31:41.871227295 +0100
+++ b/Makefile	2015-04-05 19:42:49.743517508 +0100
@@ -1,3 +1,5 @@
+prefix=$(out)
+
 all: mailcheck
 
 debug: mailcheck.c netrc.c netrc.h socket.c
@@ -7,8 +9,10 @@
 	$(CC) -Wall -O2 mailcheck.c netrc.c socket.c -s -o mailcheck
 
 install: mailcheck
-	install mailcheck $(prefix)/usr/bin
-	install -m 644 mailcheckrc $(prefix)/etc
+	[ -d $(prefix)/bin ] || mkdir $(prefix)/bin
+	[ -d $(prefix)/etc ] || mkdir $(prefix)/etc
+	install mailcheck $(prefix)/bin/
+	install -m 644 mailcheckrc $(prefix)/etc/
 
 distclean: clean