diff --git a/csshX.iterm b/csshX.iterm
index 8ddac58..d57e290 100755
--- a/csshX.iterm
+++ b/csshX.iterm
@@ -1144,7 +1144,7 @@ sub parse_user_host_port {
 package CsshX::Launcher;
 
 use base    qw(CsshX::Socket::Selectable);
-use POSIX   qw(tmpnam);
+use File::Temp  qw(tmpnam);
 use FindBin qw($Bin $Script);;
 
 sub new {