diff --git a/modules/twainui/hg_settingdialog.cpp b/modules/twainui/hg_settingdialog.cpp
index e43c1d9f..623eb4fe 100644
--- a/modules/twainui/hg_settingdialog.cpp
+++ b/modules/twainui/hg_settingdialog.cpp
@@ -2537,7 +2537,8 @@ void hg_settingdialog::slot_pushButton_scheme_management(void)
     }
     else if (btn == m_pbtn_restore)
     {
-        cur_scheme_ = cur_cfg_->get_scheme(comb_->currentText().toStdString().c_str());
+        bool ok = false;
+        cur_scheme_ = cur_cfg_->get_scheme(to_default_language(comb_->currentText().toStdString().c_str(), &ok));
         hg_settingdialog::apply_scheme(m_devHandle, &m_saneAPI, cur_scheme_);
         updateUIStatus();
         updateRestorePushButton();