diff --git a/code/nel/include/nel/gui/group_tab.h b/code/nel/include/nel/gui/group_tab.h
index 463301c17..e4f5d4c6c 100644
--- a/code/nel/include/nel/gui/group_tab.h
+++ b/code/nel/include/nel/gui/group_tab.h
@@ -49,6 +49,7 @@ namespace NLGUI
 
 		std::string getProperty( const std::string &name ) const;
 		void setProperty( const std::string &name, const std::string &value );
+		xmlNodePtr serialize( xmlNodePtr parentNode, const char *type ) const;
 
 		virtual bool parse (xmlNodePtr cur, CInterfaceGroup *parentGroup);
 		virtual void updateCoords ();
diff --git a/code/nel/src/gui/group_tab.cpp b/code/nel/src/gui/group_tab.cpp
index 1ee559b99..bf3a094fc 100644
--- a/code/nel/src/gui/group_tab.cpp
+++ b/code/nel/src/gui/group_tab.cpp
@@ -88,6 +88,20 @@ namespace NLGUI
 			CInterfaceGroup::setProperty( name, value );
 	}
 
+	xmlNodePtr CGroupTab::serialize( xmlNodePtr parentNode, const char *type ) const
+	{
+		xmlNodePtr node = CInterfaceGroup::serialize( parentNode, type );
+		if( node == NULL )
+			return NULL;
+
+		xmlSetProp( node, BAD_CAST "type", BAD_CAST "tab" );
+		xmlSetProp( node, BAD_CAST "hide_out_tabs", BAD_CAST toString( _HideOutTabs ).c_str() );
+		xmlSetProp( node, BAD_CAST "onchange", BAD_CAST _AHOnChange.c_str() );
+		xmlSetProp( node, BAD_CAST "onchange_params", BAD_CAST _ParamsOnChange.c_str() );
+
+		return node;
+	}
+
 	// ***************************************************************************
 	bool	CGroupTab::parse (xmlNodePtr cur, CInterfaceGroup *parentGroup)
 	{