if (for_input) {
io_count = route->n_inputs().n_total();
- tooltip << string_compose (_("<b>INPUT</b> to %1"), Glib::Markup::escape_text(route->name()));
+ tooltip << string_compose (_("<b>INPUT</b> to %1"), std::string (Glib::Markup::escape_text(route->name())));
} else {
io_count = route->n_outputs().n_total();
- tooltip << string_compose (_("<b>OUTPUT</b> from %1"), Glib::Markup::escape_text(route->name()));
+ tooltip << string_compose (_("<b>OUTPUT</b> from %1"), std::string (Glib::Markup::escape_text(route->name())));
}