diff --git a/src/widgets/dropdown.cpp b/src/widgets/dropdown.cpp
--- a/src/widgets/dropdown.cpp
+++ b/src/widgets/dropdown.cpp
@@ -65,7 +65,7 @@ StringID DropDownListParamStringItem::St
 
 StringID DropDownListCharStringItem::String() const
 {
-	SetDParamStr(0, this->raw_string.c_str());
+	SetDParamStr(0, this->raw_string);
 	return this->string;
 }