diff --git a/code/nel/src/gui/ctrl_button.cpp b/code/nel/src/gui/ctrl_button.cpp
index 57c505d87..50cbd1519 100644
--- a/code/nel/src/gui/ctrl_button.cpp
+++ b/code/nel/src/gui/ctrl_button.cpp
@@ -153,6 +153,9 @@ namespace NLGUI
 		if( node == NULL )
 			return NULL;
 
+		if( xmlGetProp( node, BAD_CAST "type" ) == NULL )
+			xmlSetProp( node, BAD_CAST "type", BAD_CAST "button" );
+
 		xmlNewProp( node, BAD_CAST "tx_normal",
 			BAD_CAST CViewRenderer::getInstance()->getTextureNameFromId( _TextureIdNormal ).c_str() );
 
diff --git a/code/nel/src/gui/group_tab.cpp b/code/nel/src/gui/group_tab.cpp
index f2ca41885..fc2a57038 100644
--- a/code/nel/src/gui/group_tab.cpp
+++ b/code/nel/src/gui/group_tab.cpp
@@ -799,7 +799,7 @@ namespace NLGUI
 			return NULL;
 
 		if( xmlGetProp( node, BAD_CAST "type" ) == NULL )
-			xmlSetProp( node, BAD_CAST "type", BAD_CAST "tab_button" );
+			xmlSetProp( node, BAD_CAST "type", BAD_CAST "tab" );
 
 		xmlNewProp( node, BAD_CAST "group", BAD_CAST _AssociatedGroup.c_str() );