--- data/Makefile.am.orig	2016-04-23 16:57:50 UTC
+++ data/Makefile.am
@@ -13,7 +13,7 @@ appicondir = $(datarootdir)/pixmaps
 dist_appicon_DATA = wxmaxima.svg wxmaxima.png text-x-wxmaxima-batch.svg text-x-wxmathml.svg wxmaxima-16.xpm wxmaxima-32.xpm
 
 
-mandatadir = $(datadir)/man/man1
+mandatadir = $(mandir)/man1
 dist_mandata_DATA = wxmaxima.1
 
 mimedatadir = $(datarootdir)/mime/packages