diff --git a/lib/Vimana.pm b/lib/Vimana.pm
index 78ff97f..6f39e93 100644
--- a/lib/Vimana.pm
+++ b/lib/Vimana.pm
@@ -14,11 +14,11 @@ Vimana - Vim script manager.
 
 =head1 VERSION
 
-Version 0.082
+Version 0.083
 
 =cut
 
-our $VERSION = '0.082';
+our $VERSION = '0.083';
 
 =head1 DESCRIPTION
 
@@ -72,9 +72,6 @@ sub index {
     return $INDEX;
 }
 
-sub tmpdir {
-    return  "/tmp/vimana-" . join '',map { [ 'a' .. 'z' ]->[ int rand(26) ] }  1 .. 6;
-}
 
 
 =head1 AUTHOR
diff --git a/lib/Vimana/AutoInstall.pm b/lib/Vimana/AutoInstall.pm
index 274e5f0..ace83ce 100644
--- a/lib/Vimana/AutoInstall.pm
+++ b/lib/Vimana/AutoInstall.pm
@@ -111,7 +111,7 @@ sub install_from_archive {
         }
     }
 
-    my $out = Vimana::tmpdir();
+    my $out = Vimana::Util::tempdir();
     rmtree [ $out ] if -e $out;
     mkpath [ $out ];
     $logger->info("Temporary directory created: $out") if $options->{verbose};
diff --git a/lib/Vimana/Command/Install.pm b/lib/Vimana/Command/Install.pm
index be17dc9..6e384e0 100644
--- a/lib/Vimana/Command/Install.pm
+++ b/lib/Vimana/Command/Install.pm
@@ -36,7 +36,7 @@ sub run {
 
     my $page = Vimana::VimOnline::ScriptPage->fetch( $info->{script_id} );
 
-    my $dir = '/tmp' || Vimana::tmpdir();
+    my $dir = '/tmp' || Vimana::Util::tempdir();
 
     my $url = $page->{download};
     my $filename = $page->{filename};
diff --git a/lib/Vimana/Util.pm b/lib/Vimana/Util.pm
index adf972a..ccc5fdf 100644
--- a/lib/Vimana/Util.pm
+++ b/lib/Vimana/Util.pm
@@ -14,6 +14,10 @@ sub canonical_script_name {
     $name;
 }
 
+sub tempdir {
+    return  "/tmp/vimana-" . join '',map { [ 'a' .. 'z' ]->[ int rand(26) ] }  1 .. 6;
+}
+
 sub get_mine_type {
     my $type = File::Type->new->checktype_filename( $_[ 0 ] );
     die "can not found file type from @{[ $_[0] ]}" unless $type;