diff --git a/aiida/orm/autogroup.py b/aiida/orm/autogroup.py
index 2aadcfb72a..fa5b2d8838 100644
--- a/aiida/orm/autogroup.py
+++ b/aiida/orm/autogroup.py
@@ -86,7 +86,7 @@ def validate(strings: list[str] | None):
         """Validate the list of strings passed to set_include and set_exclude."""
         if strings is None:
             return
-        valid_prefixes = set(['aiida.node', 'aiida.calculations', 'aiida.workflows', 'aiida.data'])
+        valid_prefixes = {'aiida.node', 'aiida.calculations', 'aiida.workflows', 'aiida.data'}
         for string in strings:
             pieces = string.split(':')
             if len(pieces) != 2: