diff -aurN 001/Makefile 002/Makefile
--- 001/Makefile
+++ 002/Makefile
@@ -21,7 +21,7 @@
 	perl -p -i -e 's#<div class=\"refentry\"#<div id=\"content\"><div class=\"refentry\"#' colordiff.html
 
 .PHONY: install
-install:
+install: doc
 	$(INSTALL) -d ${DESTDIR}${INSTALL_DIR}
 	sed -e "s%/etc%${ETC_DIR}%g" colordiff.pl > \
 	  ${DESTDIR}${INSTALL_DIR}/colordiff
