diff --git a/src/xrc/xh_auinotbk.cpp b/src/xrc/xh_auinotbk.cpp
index df7498394f..0a2c178f53 100644
--- a/src/xrc/xh_auinotbk.cpp
+++ b/src/xrc/xh_auinotbk.cpp
@@ -35,6 +35,7 @@ wxAuiNotebookXmlHandler::wxAuiNotebookXmlHandler()
     XRC_ADD_STYLE(wxAUI_NB_CLOSE_BUTTON);
     XRC_ADD_STYLE(wxAUI_NB_CLOSE_ON_ACTIVE_TAB);
     XRC_ADD_STYLE(wxAUI_NB_CLOSE_ON_ALL_TABS);
+    XRC_ADD_STYLE(wxAUI_NB_MIDDLE_CLICK_CLOSE);
     XRC_ADD_STYLE(wxAUI_NB_TOP);
     XRC_ADD_STYLE(wxAUI_NB_BOTTOM);