diff --git a/code/nel/include/nel/gui/ctrl_tooltip.h b/code/nel/include/nel/gui/ctrl_tooltip.h
index 6c49a194c..e70f55108 100644
--- a/code/nel/include/nel/gui/ctrl_tooltip.h
+++ b/code/nel/include/nel/gui/ctrl_tooltip.h
@@ -41,6 +41,7 @@ namespace NLGUI
 
 		virtual bool handleEvent (const NLGUI::CEventDescriptor& eventDesc);
 		virtual void draw();
+		xmlNodePtr serialize( xmlNodePtr parentNode, const char *type ) const;
 		virtual bool		parse (xmlNodePtr cur, CInterfaceGroup *parentGroup);
 		// Can do nothing with tooltip (but display it :) )
 		virtual	bool		isCapturable() const {return false;}
diff --git a/code/nel/src/gui/ctrl_scroll.cpp b/code/nel/src/gui/ctrl_scroll.cpp
index ac52f4607..d7b3c5274 100644
--- a/code/nel/src/gui/ctrl_scroll.cpp
+++ b/code/nel/src/gui/ctrl_scroll.cpp
@@ -398,6 +398,9 @@ namespace NLGUI
 		if( node == NULL )
 			return NULL;
 
+		if( xmlGetProp( node, BAD_CAST "type" ) == NULL )
+			xmlSetProp( node, BAD_CAST "type", BAD_CAST "scroll" );
+
 		xmlSetProp( node, BAD_CAST "tx_bottomleft", BAD_CAST getTextureBottomOrLeft().c_str() );
 		xmlSetProp( node, BAD_CAST "tx_middle", BAD_CAST getTextureMiddle().c_str() );
 		xmlSetProp( node, BAD_CAST "tx_topright", BAD_CAST getTextureTopOrRight().c_str() );
diff --git a/code/nel/src/gui/ctrl_tooltip.cpp b/code/nel/src/gui/ctrl_tooltip.cpp
index 0900084a9..7b895dad6 100644
--- a/code/nel/src/gui/ctrl_tooltip.cpp
+++ b/code/nel/src/gui/ctrl_tooltip.cpp
@@ -44,6 +44,19 @@ namespace NLGUI
 		return false;
 	}
 
+
+	xmlNodePtr CCtrlToolTip::serialize( xmlNodePtr parentNode, const char *type ) const
+	{
+		xmlNodePtr node = CCtrlBase::serialize( parentNode, type );
+		if( node == NULL )
+			return NULL;
+
+		if( xmlGetProp( node, BAD_CAST "type" ) == NULL )
+			xmlSetProp( node, BAD_CAST "type", BAD_CAST "tooltip" );
+
+		return node;
+	}
+
 	// ----------------------------------------------------------------------------
 	bool CCtrlToolTip::parse(xmlNodePtr cur, CInterfaceGroup *parentGroup)
 	{