diff --git a/addons/website_slides/models/slide_channel.py b/addons/website_slides/models/slide_channel.py
index 1c391b253fa..dd772a8ec7b 100644
--- a/addons/website_slides/models/slide_channel.py
+++ b/addons/website_slides/models/slide_channel.py
@@ -136,8 +136,7 @@ class Channel(models.Model):
     # not stored access fields, depending on each user
     completed = fields.Boolean('Done', compute='_compute_user_statistics')
     completion = fields.Integer('Completion', compute='_compute_user_statistics')
-    can_upload = fields.Boolean('Can Upload', compute='_compute_access')
-    can_publish = fields.Boolean('Can Publish', compute='_compute_access')
+    can_upload = fields.Boolean('Can Upload', compute='_compute_can_upload')
     # karma generation
     karma_gen_slide_vote = fields.Integer(string='Lesson voted', default=1)
     karma_gen_channel_share = fields.Integer(string='Course shared', default=2)
@@ -215,12 +214,25 @@ class Channel(models.Model):
         for record in self:
             record.completed, record.completion = mapped_data.get(record.id, (False, 0))
 
-    @api.depends('channel_type', 'partner_ids', 'upload_group_ids')
-    def _compute_access(self):
+    @api.depends('upload_group_ids')
+    def _compute_can_upload(self):
+        for record in self:
+            record.can_upload = not self.env.user.share and (not record.upload_group_ids or bool(record.upload_group_ids & self.env.user.groups_id))
+
+    @api.depends('channel_type', 'user_id', 'can_upload')
+    def _compute_can_publish(self):
+        """ For channels of type 'training', only the responsible (see user_id field) can publish slides.
+        The 'sudo' user needs to be handled because he's the one used for uploads done on the front-end when the
+        logged in user is not publisher but fulfills the upload_group_ids condition. """
         for record in self:
             is_doc = record.channel_type == 'documentation'
-            record.can_upload = not self.env.user.share and (not record.upload_group_ids or bool(record.upload_group_ids & self.env.user.groups_id))
-            record.can_publish = record.can_upload and self.env.user.has_group('website.group_website_publisher') and (is_doc or record.user_id == self.env.user)
+            record.can_publish = record.can_upload \
+                and self.env.user.has_group('website.group_website_publisher') \
+                and (is_doc or record.user_id == self.env.user or self.env.user._is_superuser())
+
+    @api.model
+    def _get_can_publish_error_message(self):
+        return _("Publishing is restricted to the responsible of training courses or members of the publisher group for documentation courses")
 
     @api.multi
     @api.depends('name')
diff --git a/addons/website_slides/models/slide_slide.py b/addons/website_slides/models/slide_slide.py
index c705542e681..35b9fefc4e5 100644
--- a/addons/website_slides/models/slide_slide.py
+++ b/addons/website_slides/models/slide_slide.py
@@ -254,6 +254,15 @@ class Slide(models.Model):
                     url = '%s/slides/slide/%s' % (base_url, slug(slide))
                 slide.website_url = url
 
+    @api.depends('channel_id.can_publish')
+    def _compute_can_publish(self):
+        for record in self:
+            record.can_publish = record.channel_id.can_publish
+
+    @api.model
+    def _get_can_publish_error_message(self):
+        return _("Publishing is restricted to the responsible of training courses or members of the publisher group for documentation courses")
+
     # ---------------------------------------------------------
     # ORM Overrides
     # ---------------------------------------------------------
@@ -263,7 +272,7 @@ class Slide(models.Model):
         # Do not publish slide if user has not publisher rights
         channel = self.env['slide.channel'].browse(values['channel_id'])
         if not channel.can_publish:
-            values['website_published'] = False
+            # 'website_published' is handled by mixin
             values['date_published'] = False
 
         if not values.get('index_content'):
@@ -288,9 +297,6 @@ class Slide(models.Model):
 
     @api.multi
     def write(self, values):
-        if 'website_published' in values and any(not slide.channel_id.can_publish for slide in self):
-            values.pop('website_published')
-
         if values.get('url') and values['url'] != self.url:
             doc_data = self._parse_document_url(values['url']).get('values', dict())
             for key, value in doc_data.items():
diff --git a/addons/website_slides/tests/test_security.py b/addons/website_slides/tests/test_security.py
index 55c2c6ede8c..d9572732589 100644
--- a/addons/website_slides/tests/test_security.py
+++ b/addons/website_slides/tests/test_security.py
@@ -154,3 +154,8 @@ class TestAccess(common.SlidesCase):
         # standard people should not be responsible as they still cannot publish
         self.assertTrue(channel_emp.can_upload)
         self.assertFalse(channel_emp.can_publish)
+
+        # superuser should always be able to publish even if he's not the responsible
+        channel_superuser = self.channel.sudo()
+        self.assertTrue(channel_superuser.can_upload)
+        self.assertTrue(channel_superuser.can_publish)