diff --git a/Changes b/Changes
index 50c3a55..58d5077 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,7 @@ Revision history for {{$dist->name}}
 
 4.16 2020-06-20 Duncan Ferguson <duncan_ferguson@user.sf.net>
 - Further fix for 'resolve_names' error when adding hosts via the UI
+- Fix missing space separator for ssh_args (thanks to Petr Vorel)
 
 4.15 2020-05-18 Duncan Ferguson <duncan_ferguson@user.sf.net>
 - Include all utilies within each man page
diff --git a/THANKS b/THANKS
index 5944526..daa7d78 100644
--- a/THANKS
+++ b/THANKS
@@ -48,3 +48,4 @@ Bill Rushmore
 Ankit Vadehra
 Azenet
 Markus Frosch (lazyfrosch)
+Petr Vorel
diff --git a/lib/App/ClusterSSH/Helper.pm b/lib/App/ClusterSSH/Helper.pm
index dbc5fb6..463a538 100644
--- a/lib/App/ClusterSSH/Helper.pm
+++ b/lib/App/ClusterSSH/Helper.pm
@@ -71,9 +71,9 @@ sub script {
            my \$user=shift;
            my \$port=shift;
            my \$mstr=shift;
-           my \$command="$command_pre $comms $comms_args";
+           my \$command="$command_pre $comms $comms_args ";
            open(PIPE, ">", \$pipe) or die("Failed to open pipe: \$!\\n");
-           print PIPE "\$\$:\$ENV{WINDOWID}" 
+           print PIPE "\$\$:\$ENV{WINDOWID}"
                or die("Failed to write to pipe: $!\\n");
            close(PIPE) or die("Failed to close pipe: $!\\n");
            if(\$svr =~ m/==\$/)