diff --git a/libs/canvas/canvas/item.h b/libs/canvas/canvas/item.h
index d9d644abe1..9d9ee62219 100644
--- a/libs/canvas/canvas/item.h
+++ b/libs/canvas/canvas/item.h
@@ -37,7 +37,6 @@
 
 namespace ArdourCanvas
 {
-struct Rect;
 
 class Canvas;
 class ScrollGroup;