diff --git a/src/signs_gui.cpp b/src/signs_gui.cpp
--- a/src/signs_gui.cpp
+++ b/src/signs_gui.cpp
@@ -200,6 +200,7 @@ static const NWidgetPart _nested_sign_li
 	NWidget(NWID_HORIZONTAL),
 		NWidget(WWT_CLOSEBOX, COLOUR_GREY),
 		NWidget(WWT_CAPTION, COLOUR_GREY, SLW_CAPTION), SetDataTip(STR_SIGN_LIST_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
+		NWidget(WWT_SHADEBOX, COLOUR_GREY),
 		NWidget(WWT_STICKYBOX, COLOUR_GREY),
 	EndContainer(),
 	NWidget(NWID_HORIZONTAL),
@@ -323,7 +324,7 @@ struct SignWindow : QueryStringBaseWindo
 	virtual void OnPaint()
 	{
 		this->DrawWidgets();
-		this->DrawEditBox(QUERY_EDIT_SIGN_WIDGET_TEXT);
+		if (!this->IsShaded()) this->DrawEditBox(QUERY_EDIT_SIGN_WIDGET_TEXT);
 	}
 
 	virtual void OnClick(Point pt, int widget)