--- a/Makefile	Mon Dec 22 23:28:50 2014 +0100
+++ b/Makefile	Mon Dec 22 23:29:43 2014 +0100
@@ -1,9 +1,9 @@
 all:	out/short.html out/short.pdf
 
-out/short.html: short.txt
+html out/short.html: short.txt
 		asciidoc -o out/short.html -f xhtml $<
 
-out/short.pdf: short.txt
+pdf out/short.pdf: short.txt
 		 a2x -D out/ $<
 
-distclean:	-rm -rf out/*
+distclean:	;-rm -rf out/*