diff --git a/src/bridge_gui.cpp b/src/bridge_gui.cpp
--- a/src/bridge_gui.cpp
+++ b/src/bridge_gui.cpp
@@ -223,7 +223,7 @@ public:
 		}
 	}
 
-	virtual void OnResize(Point new_size, Point delta)
+	virtual void OnResize(Point delta)
 	{
 		this->vscroll.cap += delta.y / (int)this->resize.step_height;
 		this->widget[BBSW_BRIDGE_LIST].data = (this->vscroll.cap << 8) + 1;