diff --git a/src/slic3r/GUI/PhysicalPrinterDialog.cpp b/src/slic3r/GUI/PhysicalPrinterDialog.cpp
index 4d6d48a26..1ab467214 100644
--- a/src/slic3r/GUI/PhysicalPrinterDialog.cpp
+++ b/src/slic3r/GUI/PhysicalPrinterDialog.cpp
@@ -329,7 +329,7 @@ void PhysicalPrinterDialog::build_printhost_settings(ConfigOptionsGroup* m_optgr
     // Always fill in the "printhost_port" combo box from the config and select it.
     {
         Choice* choice = dynamic_cast<Choice*>(m_optgroup->get_field("printhost_port"));
-        choice->set_values({ m_config->opt_string("printhost_port") });
+        choice->set_values(std::vector<std::string>({ m_config->opt_string("printhost_port") }));
         choice->set_selection();
     }