diff --git a/tsg_util/tsg_initialisation.m b/tsg_util/tsg_initialisation.m
index f30a9b234006a75c144ffbf0965310ed3550c9ed..6aea132945a633de8bb833a9c6602fbb6c0c0fe3 100644
--- a/tsg_util/tsg_initialisation.m
+++ b/tsg_util/tsg_initialisation.m
@@ -176,3 +176,13 @@ tsg.REFERENCE_DATE_TIME   =  REFERENCE_DATE_TIME;
 % Save tsg structure 
 % ------------------
 setappdata( hMainFig, 'tsg_data', tsg);
+
+% init root structure to default values
+% -------------------------------------
+root.preference.autoload  = 'off';
+root.version              = 'unknown';
+root.preference.parameter = 'SSPS';
+
+% Save root structure in MainFig
+% ------------------------------
+set( 0, 'userdata', root );
diff --git a/tsg_util/tsg_preferences.m b/tsg_util/tsg_preferences.m
index 32e0a94fb84ec92348d7c50e87a9da091c72b348..093c512ae1b2967638b849d6ca820a27beced992 100644
--- a/tsg_util/tsg_preferences.m
+++ b/tsg_util/tsg_preferences.m
@@ -48,20 +48,11 @@ switch fid
   % disactive the preference mode (for test or bug)
   % -----------------------------------------------
   case -2
-    
-    % init root structure to default values
-    % -------------------------------------
-    root.preference.autoload = 'off';
-    root.version             = VERSION;
 
     % call default tsg_initialisation
     % -------------------------------
     tsg_initialisation(hTsgGUI);
     
-    % save root in root object for next use
-    % -------------------------------------
-    set(0, 'userdata', root);
-    
     return;
 
   % file exist and is open, fid > 2
@@ -74,7 +65,7 @@ switch fid
 
     % Initialize loading preference file waitbar
     % ------------------------------------------
-    wb = waitbar(0, 'Loading préference file. Please  wait...');
+    wb = waitbar(0, 'Loading preference file. Please  wait...');
 
     % display waitbar
     % ---------------
@@ -164,11 +155,6 @@ set(0, 'userdata', root);
     % -------------------------------------
     tsg = getappdata( hTsgGUI, 'tsg_data');
 
-    % init root structure to default values
-    % -------------------------------------
-    root.preference.autoload = 'off';
-    root.version             = VERSION;
-
     % save root and tsg to 'prefdir.mat' file
     % ---------------------------------------
     save(config_file, 'root', 'tsg');