diff --git a/src/graphics/ui/gui_xml.cpp b/src/graphics/ui/gui_xml.cpp
index 214ccecb..8c0f8494 100644
--- a/src/graphics/ui/gui_xml.cpp
+++ b/src/graphics/ui/gui_xml.cpp
@@ -295,7 +295,7 @@ static std::shared_ptr<UINode> readTextBox(UiXmlReader& reader, xml::xmlelement
     if (element->has("supplier")) {
         auto supplier = scripting::create_wstring_supplier(
             reader.getEnvironment().getId(),
-            element->attr("consumer").getText(),
+            element->attr("supplier").getText(),
             reader.getFilename()
         );
         textbox->setTextSupplier(supplier);