diff --git a/ui/widget/RouteItem.cpp b/ui/widget/RouteItem.cpp
index 2cc09ad..bbe565a 100644
--- a/ui/widget/RouteItem.cpp
+++ b/ui/widget/RouteItem.cpp
@@ -343,7 +343,7 @@ void RouteItem::updateHelperItems(const QString& base) {
     ui->rule_set_helper->clearSelection();
     current_helper_items.clear();
     for (const auto& item: geo_items) {
-        if (item.contains(base)) current_helper_items << item;
+        if (item.toLower().contains(base.toLower())) current_helper_items << item;
     }
     for (int i=0;i<current_helper_items.size();i++) {
         for (int j=i+1;j<current_helper_items.size();j++) {