diff --git a/engine/core/management/commands/demo_data.py b/engine/core/management/commands/demo_data.py
index 3858ab6e..d9b2b75c 100644
--- a/engine/core/management/commands/demo_data.py
+++ b/engine/core/management/commands/demo_data.py
@@ -87,7 +87,7 @@ class Command(BaseCommand):
 
         self._load_demo_data()
 
-        with override("en"):
+        with override("en-gb"):
             if action == "install":
                 self._install(options)
             elif action == "remove":
@@ -436,8 +436,11 @@ class Command(BaseCommand):
                             attribute=attr,
                             defaults={"value": value},
                         )
-                        if created and value_ru:
-                            av.value_ru_ru = value_ru  # ty:ignore[invalid-assignment]
+                        if created:
+                            if value_ru:
+                                av.value_ru_ru = value_ru  # ty:ignore[invalid-assignment]
+                            else:
+                                av.value_ru_ru = value  # ty:ignore[invalid-assignment]
                             av.save()
 
     def _find_image(self, partnumber: str, suffix: str = "") -> Path | None: