X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fcanvas%2Fcanvas%2Fpoly_item.h;h=311ca80933f1b91aeb7f0ccb5d2146d89a1cd183;hb=d92686afb4105b84b014372b6feb0ccc454a5171;hp=bdb7c20b1a4d3b2ff0a14fb5021d03eece26fa84;hpb=22b07e0233a29d9633ffa825a79503befaf2e16e;p=ardour.git

diff --git a/libs/canvas/canvas/poly_item.h b/libs/canvas/canvas/poly_item.h
index bdb7c20b1a..311ca80933 100644
--- a/libs/canvas/canvas/poly_item.h
+++ b/libs/canvas/canvas/poly_item.h
@@ -32,7 +32,7 @@ public:
 	PolyItem (Canvas*);
 	PolyItem (Item*);
 
-	void compute_bounding_box () const;
+	virtual void compute_bounding_box () const;
 
 	virtual void set (Points const &);
 	Points const & get () const;