diff --git a/src/bridge_gui.cpp b/src/bridge_gui.cpp
--- a/src/bridge_gui.cpp
+++ b/src/bridge_gui.cpp
@@ -268,12 +268,12 @@ static const Widget _build_bridge_widget
 };
 
 /* Window definition for the rail bridge selection window */
-static const WindowDesc _build_bridge_desc = {
+static const WindowDesc _build_bridge_desc(
 	WDP_AUTO, WDP_AUTO, 200, 114, 200, 114,
 	WC_BUILD_BRIDGE, WC_BUILD_TOOLBAR,
 	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_RESIZABLE | WDF_CONSTRUCTION,
-	_build_bridge_widgets,
-};
+	_build_bridge_widgets
+);
 
 /**
  * Prepare the data for the build a bridge window.