diff --git a/interface/wx/aui/dockart.h b/interface/wx/aui/dockart.h
index dca375c5a7..4d69f7cd77 100644
--- a/interface/wx/aui/dockart.h
+++ b/interface/wx/aui/dockart.h
@@ -208,6 +208,11 @@ public:
     */
     virtual ~wxAuiDockArt();
 
+    /**
+       Create a copy of this wxAuiDockArt instance.
+    */
+    virtual wxAuiDockArt* Clone() = 0;
+
     /**
         Draws a background.
     */
@@ -297,6 +302,7 @@ public:
 
     wxAuiDefaultDockArt();
 
+    virtual wxAuiDockArt* Clone();
     int GetMetric(int metricId);
     void SetMetric(int metricId, int newVal);
     wxColour GetColour(int id);