diff --git a/addons/website_slides/models/slide_slide.py b/addons/website_slides/models/slide_slide.py
index d9fac8c5264..78296759ecc 100644
--- a/addons/website_slides/models/slide_slide.py
+++ b/addons/website_slides/models/slide_slide.py
@@ -267,7 +267,7 @@ class Slide(models.Model):
         for slide in self:
             slide.slide_views = mapped_data.get(slide.id, 0)
 
-    @api.depends('slide_ids.slide_type', 'slide_ids.is_published', 'slide_ids.is_category')
+    @api.depends('slide_ids.sequence', 'slide_ids.slide_type', 'slide_ids.is_published', 'slide_ids.is_category')
     def _compute_slides_statistics(self):
         # Do not use dict.fromkeys(self.ids, dict()) otherwise it will use the same dictionnary for all keys.
         # Therefore, when updating the dict of one key, it updates the dict of all keys.
diff --git a/addons/website_slides/tests/test_statistics.py b/addons/website_slides/tests/test_statistics.py
index 3d94a8ed596..ae5c406f361 100644
--- a/addons/website_slides/tests/test_statistics.py
+++ b/addons/website_slides/tests/test_statistics.py
@@ -164,3 +164,18 @@ class TestSlideStatistics(common.SlidesCase):
         self.assertEqual(
             category.nbr_document,
             len(category.channel_id.slide_ids.filtered(lambda s: s.category_id == category and s.slide_type == 'document')))
+
+        self.assertEqual(category.total_slides, 2, 'The first category should contain 2 slides')
+        other_category = self.env['slide.slide'].with_user(self.user_publisher).create({
+            'name': 'Other Category',
+            'channel_id': self.channel.id,
+            'is_category': True,
+            'is_published': True,
+            'sequence': 5,
+        })
+        self.assertEqual(other_category.total_slides, 0, 'The other category should not contain any slide yet')
+
+        # move one of the slide to the other category
+        self.slide_3.write({'sequence': 6})
+        self.assertEqual(category.total_slides, 1, 'The first category should contain 1 slide')
+        self.assertEqual(other_category.total_slides, 1, 'The other category should contain 1 slide')