diff --git a/src/game/SignTool.cpp b/src/game/SignTool.cpp
index 79f1ae74f..169c5b7c8 100644
--- a/src/game/SignTool.cpp
+++ b/src/game/SignTool.cpp
@@ -131,7 +131,7 @@ SignWindow::SignWindow(SignTool * tool_, Simulation * sim_, int signID_, ui::Poi
 	justification->SetOption(1);
 	justification->Appearance.HorizontalAlign = ui::Appearance::AlignLeft;
 	
-	textField = new ui::Textbox(ui::Point(8, 25), ui::Point(Size.X-16, 17), "[message]");
+	textField = new ui::Textbox(ui::Point(8, 25), ui::Point(Size.X-16, 17), "", "[message]");
 	textField->Appearance.HorizontalAlign = ui::Appearance::AlignLeft;
 	textField->Appearance.VerticalAlign = ui::Appearance::AlignMiddle;
 	textField->SetActionCallback(new SignTextAction(this));