--- doc/Makefile.am.orig	2016-08-27 09:36:16 UTC
+++ doc/Makefile.am
@@ -3,5 +3,5 @@
 man_MANS = portfwd.8 portfwd.cfg.5
 noinst_DATA = INSTALL.configure
 
-docdir = $(prefix)/doc/portfwd
+docdir = $(prefix)/share/doc/portfwd
 doc_DATA = FAQ conf.txt