--- g15mpd-1.0.0/Makefile.am
+++ g15mpd-1.0.0/Makefile.am
@@ -3,7 +3,7 @@
 METASOURCES = AUTO
 bin_PROGRAMS = g15mpd
 
-docdir = $(prefix)/share/doc/$(PACKAGE)-$(VERSION)
+docdir = @docdir@
 doc_DATA = README ChangeLog AUTHORS NEWS COPYING
 
 LIBS = -lg15daemon_client -lg15render -lX11 -lXtst -lmpd