diff --git a/apps/establishment/management/commands/establishment_optimize_preview_image.py b/apps/establishment/management/commands/establishment_optimize_preview_image.py
index f50c8801..bfb5b047 100644
--- a/apps/establishment/management/commands/establishment_optimize_preview_image.py
+++ b/apps/establishment/management/commands/establishment_optimize_preview_image.py
@@ -13,16 +13,17 @@ class Command(BaseCommand):
     def handle(self, *args, **options):
         with transaction.atomic():
             for establishment in Establishment.objects.all():
-                if not image_url_valid(establishment.preview_image_url):
+                if isinstance(establishment.image_url, str) \
+                        or not image_url_valid(establishment.image_url):
                     continue
 
-                _, width, height = get_image_meta_by_url(establishment.preview_image_url)
+                _, width, height = get_image_meta_by_url(establishment.image_url)
                 sorl_settings = settings.SORL_THUMBNAIL_ALIASES[self.SORL_THUMBNAIL_ALIAS]
                 sorl_width_height = sorl_settings['geometry_string'].split('x')
 
                 if int(sorl_width_height[0]) > width or int(sorl_width_height[1]) > height:
                     establishment.preview_image_url = get_thumbnail(
-                        file_=establishment.preview_image_url,
+                        file_=establishment.image_url,
                         **sorl_settings
                     ).url
                     establishment.save()