diff --git a/deirokay/history_template.py b/deirokay/history_template.py
index 61750b1..ca6596c 100644
--- a/deirokay/history_template.py
+++ b/deirokay/history_template.py
@@ -96,8 +96,9 @@ def __init__(self, docs: List[dict]):
             attributes = set(DocumentNode.attribute_keys.input(docs).all())
         except TypeError:
             raise TypeError(
-                'List-like scopes must be aliased when using `series`'
-                ' templates. Make sure your last Deirokay logs obey this rule.'
+                'Every list-like scope must be aliased'
+                ' when some scope uses `series` templates.'
+                ' Make sure your last Deirokay logs obey this rule.'
             )
 
         for att in attributes: