diff --git a/MCONFIG.in b/MCONFIG.in
index 1776cf8..f01e4e2 100644
--- a/MCONFIG.in
+++ b/MCONFIG.in
@@ -17,6 +17,7 @@
 man8dir = $(usr_prefix)/man/man8
 cat1dir = $(usr_prefix)/man/cat1
 cat8dir = $(usr_prefix)/man/cat8
+infodir = $(usr_prefix)/info
 
 @SET_MAKE@