diff --git a/qlasskit/ast2logic/t_arguments.py b/qlasskit/ast2logic/t_arguments.py
index a108a244..ddfc2758 100644
--- a/qlasskit/ast2logic/t_arguments.py
+++ b/qlasskit/ast2logic/t_arguments.py
@@ -32,7 +32,7 @@ def to_name(a):
         ttypes: List[TType] = []
 
         if sys.version_info < (3, 9):
-            _elts = ann.slice.value.elts
+            _elts = ann.slice.value.elts # type: ignore
         else:
             _elts = ann.slice.elts # type: ignore