diff --git a/apps/assets/models/node.py b/apps/assets/models/node.py
index 916dae1e2..c1e47d56b 100644
--- a/apps/assets/models/node.py
+++ b/apps/assets/models/node.py
@@ -211,7 +211,8 @@ class AssetsAmountMixin:
         cached = cache.get(cache_key)
         if cached is not None:
             return cached
-        assets_amount = self.get_all_assets().count()
+        assets_amount = self.get_all_assets().only('id').count()
+        self.assets_amount = assets_amount
         return assets_amount
 
     @assets_amount.setter