diff --git a/src/richtext/richtextbuffer.cpp b/src/richtext/richtextbuffer.cpp
index 54a9270b9e..8a4b4929f6 100644
--- a/src/richtext/richtextbuffer.cpp
+++ b/src/richtext/richtextbuffer.cpp
@@ -11913,7 +11913,7 @@ wxString wxRichTextImageBlock::GetExtension() const
  * The data object for a wxRichTextBuffer
  */
 
-const wxChar *wxRichTextBufferDataObject::ms_richTextBufferFormatId = wxT("wxShape");
+const wxChar *wxRichTextBufferDataObject::ms_richTextBufferFormatId = wxT("wxRichText");
 
 wxRichTextBufferDataObject::wxRichTextBufferDataObject(wxRichTextBuffer* richTextBuffer)
 {