diff --git a/locale/ca_ES.po b/locale/ca_ES.po
index 5e6cf65..bfe043d 100644
--- a/locale/ca_ES.po
+++ b/locale/ca_ES.po
@@ -78,6 +78,10 @@ msgctxt "field:galatea.tutorial,slug_langs:"
 msgid "Slug Langs"
 msgstr "Slug idiomes"
 
+msgctxt "field:galatea.tutorial,user:"
+msgid "User"
+msgstr "Usuari"
+
 msgctxt "field:galatea.tutorial,websites:"
 msgid "Websites"
 msgstr "Llocs web"
@@ -213,7 +217,7 @@ msgid ""
 "Almost all search engines recommend it to be shorter than 155 characters of "
 "plain text"
 msgstr ""
-"La majoría dels cercadors recomanen un text de 155 caràcters de text pla."
+"La majoria dels cercadors recomanen un text de 155 caràcters de text pla."
 
 msgctxt "help:galatea.tutorial,metakeywords:"
 msgid "Separated by comma"
@@ -270,7 +274,7 @@ msgstr "Comentaris"
 
 msgctxt "model:ir.action,name:act_tutorial_form"
 msgid "Tutorials"
-msgstr "Tutoriales"
+msgstr "Tutorials"
 
 msgctxt "model:ir.ui.menu,name:menu_galatea_tutorial"
 msgid "Tutorial"
@@ -282,7 +286,7 @@ msgstr "Comentaris"
 
 msgctxt "model:ir.ui.menu,name:menu_tutorial_form"
 msgid "Tutorials"
-msgstr "Tutoriales"
+msgstr "Tutorials"
 
 msgctxt "model:res.group,name:group_galatea_tutorial"
 msgid "Galatea Tutorial"
@@ -322,7 +326,7 @@ msgstr "Tutorial"
 
 msgctxt "view:galatea.tutorial:"
 msgid "Tutorials"
-msgstr "Tutoriales"
+msgstr "Tutorials"
 
 msgctxt "view:galatea.tutorial:"
 msgid "Websites"
diff --git a/locale/es_ES.po b/locale/es_ES.po
index c4b61ea..f333727 100644
--- a/locale/es_ES.po
+++ b/locale/es_ES.po
@@ -78,6 +78,10 @@ msgctxt "field:galatea.tutorial,slug_langs:"
 msgid "Slug Langs"
 msgstr "Slug idiomas"
 
+msgctxt "field:galatea.tutorial,user:"
+msgid "User"
+msgstr "Usuario"
+
 msgctxt "field:galatea.tutorial,websites:"
 msgid "Websites"
 msgstr "Sitios web"
@@ -243,7 +247,7 @@ msgstr ""
 
 msgctxt "help:galatea.website,tutorial_anonymous:"
 msgid "Active user anonymous to publish comments."
-msgstr "Activar usuarios anónimos en publicar comentaios."
+msgstr "Activar usuarios anónimos en publicar comentarios."
 
 msgctxt "help:galatea.website,tutorial_comment:"
 msgid "Active tutorial comments."
diff --git a/tutorial.py b/tutorial.py
index 4b66ba9..0466653 100644
--- a/tutorial.py
+++ b/tutorial.py
@@ -31,6 +31,7 @@ class GalateaTutorial(ModelSQL, ModelView):
     metatitle = fields.Char('Meta Title',  translate=True)
     active = fields.Boolean('Active',
         help='Dissable to not show content tutorial.')
+    user = fields.Many2One('galatea.user', 'User', required=True)
     websites = fields.Many2Many('galatea.tutorial-galatea.website', 
         'tutorial', 'website', 'Websites',
         help='Tutorial will be available in those websites')
@@ -53,6 +54,17 @@ class GalateaTutorial(ModelSQL, ModelView):
     def default_comment():
         return True
 
+    @classmethod
+    def default_user(cls):
+        Website = Pool().get('galatea.website')
+        websites = Website.search([('active', '=', True)], limit=1)
+        if not websites:
+            return None
+        website, = websites
+        if website.tutorial_anonymous_user:
+            return website.tutorial_anonymous_user.id
+        return None
+
     @classmethod
     def __setup__(cls):
         super(GalateaTutorial, cls).__setup__()
@@ -139,10 +151,13 @@ class GalateaTutorialComment(ModelSQL, ModelView):
     @classmethod
     def default_user(cls):
         Website = Pool().get('galatea.website')
-        websites = Website.search([('active', '=', True)])
-        if len(websites) == 1:
-            if websites[0].tutorial_anonymous_user:
-                return websites[0].tutorial_anonymous_user.id
+        websites = Website.search([('active', '=', True)], limit=1)
+        if not websites:
+            return None
+        website, = websites
+        if website.tutorial_anonymous_user:
+            return website.tutorial_anonymous_user.id
+        return None
 
     @classmethod
     def get_comment_create_date(cls, records, name):
diff --git a/view/tutorial_form.xml b/view/tutorial_form.xml
index f54e0ba..24ca067 100644
--- a/view/tutorial_form.xml
+++ b/view/tutorial_form.xml
@@ -8,6 +8,8 @@ this repository contains the full copyright notices and license terms. -->
     <field name="slug"/>
     <label name="active"/>
     <field name="active"/>
+    <label name="user"/>
+    <field name="user"/>
     <notebook colspan="4">
         <page string="Descriptions" id="descriptions">
             <field name="description" colspan="4"/>
diff --git a/view/tutorial_tree.xml b/view/tutorial_tree.xml
index ce750b2..9a95fa1 100644
--- a/view/tutorial_tree.xml
+++ b/view/tutorial_tree.xml
@@ -4,6 +4,7 @@ this repository contains the full copyright notices and license terms. -->
 <tree string="Tutorials">
     <field name="name"/>
     <field name="slug"/>
+    <field name="user"/>
     <field name="websites" tree_invisible="1"/>
     <field name="active" tree_invisible="1"/>
 </tree>