diff --git a/configure.in b/configure.in
index 77af3768..ad2be9df 100644
--- a/configure.in
+++ b/configure.in
@@ -205,6 +205,7 @@ prefix="$PREFIX"
 dnl man pages (source)
 dnl also check if man page source is gzipped
 dnl (usually on Debian, but not Redhat pre-7.0)
+pkg_man_dir=${prefix}/man
 have_zipped_manpages=false
 for d in ${prefix}/share/man ${prefix}/man ; do
     if test -f $d/man1/man.1.gz