diff --git a/Makefile b/Makefile
index 1e1fb81..33394aa 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ prefix = /usr/local
 bindir = $(prefix)/bin
 sharedir = $(prefix)/share
 docdir = $(sharedir)/doc
-pkgdocdir = $(sharedir)/makefile2graph
+pkgdocdir = $(docdir)/makefile2graph
 mandir = $(sharedir)/man
 man1dir = $(mandir)/man1