diff --git a/src/xrc/xh_notbk.cpp b/src/xrc/xh_notbk.cpp
index 5248793026..f6d646786f 100644
--- a/src/xrc/xh_notbk.cpp
+++ b/src/xrc/xh_notbk.cpp
@@ -35,6 +35,7 @@ wxNotebookXmlHandler::wxNotebookXmlHandler()
     XRC_ADD_STYLE(wxNB_FIXEDWIDTH);
     XRC_ADD_STYLE(wxNB_LEFT);
     XRC_ADD_STYLE(wxNB_RIGHT);
+    XRC_ADD_STYLE(wxNB_TOP);
     XRC_ADD_STYLE(wxNB_BOTTOM);
     AddWindowStyles();
 }