diff --git a/src/xrc/xh_toolb.cpp b/src/xrc/xh_toolb.cpp
index a7a569ead4..d363a24021 100644
--- a/src/xrc/xh_toolb.cpp
+++ b/src/xrc/xh_toolb.cpp
@@ -39,6 +39,7 @@ wxToolBarXmlHandler::wxToolBarXmlHandler()
     XRC_ADD_STYLE(wxTB_NOICONS);
     XRC_ADD_STYLE(wxTB_NODIVIDER);
     XRC_ADD_STYLE(wxTB_NOALIGN);
+    XRC_ADD_STYLE(wxTB_HORZ_LAYOUT);
     AddWindowStyles();
 }