diff --git a/include/wx/richtext/richtextbuffer.h b/include/wx/richtext/richtextbuffer.h
index 4d0d3f7b9b..604229a8c4 100644
--- a/include/wx/richtext/richtextbuffer.h
+++ b/include/wx/richtext/richtextbuffer.h
@@ -6025,6 +6025,11 @@ public:
     */
     void MakeObject(wxRichTextObject* obj) { m_objectAddress.Create(m_buffer, obj); }
 
+    /**
+        Sets the existing and new objects, for use with wxRICHTEXT_CHANGE_OBJECT.
+    */
+    void SetOldAndNewObjects(wxRichTextObject* oldObj, wxRichTextObject* newObj) { SetObject(oldObj); StoreObject(newObj); }
+
     /**
         Calculate arrays for refresh optimization.
     */
diff --git a/interface/wx/richtext/richtextbuffer.h b/interface/wx/richtext/richtextbuffer.h
index a345f04c05..2636f83fc5 100644
--- a/interface/wx/richtext/richtextbuffer.h
+++ b/interface/wx/richtext/richtextbuffer.h
@@ -5883,6 +5883,11 @@ public:
     */
     void MakeObject(wxRichTextObject* obj) { m_objectAddress.Create(m_buffer, obj); }
 
+    /**
+        Sets the existing and new objects, for use with wxRICHTEXT_CHANGE_OBJECT.
+    */
+    void SetOldAndNewObjects(wxRichTextObject* oldObj, wxRichTextObject* newObj);
+
     /**
         Calculate arrays for refresh optimization.
     */