--- g15composer-3.2/Makefile.am
+++ g15composer-3.2/Makefile.am
@@ -3,7 +3,7 @@
 EXTRA_DIST = g15composer.l g15composer.y debian examples doc
 noinst_HEADERS = g15composer.h g15c_logo.h
 man1_MANS = $(top_srcdir)/doc/g15composer.1
-docdir = $(prefix)/share/doc/$(PACKAGE)-$(VERSION)
+docdir = @docdir@
 doc_DATA = AUTHORS ChangeLog COPYING NEWS README
 
 g15composer.tab.c: g15composer.lex.c g15composer.y g15composer.h