--- a/lib/App/ClusterSSH/Config.pm
+++ b/lib/App/ClusterSSH/Config.pm
@@ -220,7 +220,7 @@ sub parse_config_file {
         $self->debug( 3, "Picked up clusters defined in $config_file" );
         foreach my $cluster ( sort split / /, $read_config{clusters} ) {
             if ( $read_config{$cluster} ) {
-                $clusters->register_tag( $cluster, $read_config{$cluster} );
+                $clusters->register_tag( $cluster, split(/ /,$read_config{$cluster}) );
                 $old_clusters{$cluster} = $read_config{$cluster};
                 delete( $read_config{$cluster} );
             }