diff --git a/tests/v3/test_indexing.py b/tests/v3/test_indexing.py
index 890c487b0..da358afbd 100644
--- a/tests/v3/test_indexing.py
+++ b/tests/v3/test_indexing.py
@@ -1782,9 +1782,7 @@ async def test_accessed_chunks(
 
         # Combine and generate the cartesian product to determine the chunks keys that
         # will be accessed
-        chunks_accessed = [
-            ".".join([str(ci) for ci in comb]) for comb in itertools.product(*chunks_per_dim)
-        ]
+        chunks_accessed = [".".join(map(str, comb)) for comb in itertools.product(*chunks_per_dim)]
 
         counts_before = store.counter.copy()