diff --git a/tests/test_array.py b/tests/test_array.py
index f1ad11693..b73ecb17b 100644
--- a/tests/test_array.py
+++ b/tests/test_array.py
@@ -9,7 +9,7 @@
     missing_ranges,
     move_zeros,
     plus_one_v1, plus_one_v2, plus_one_v3,
-    remove_duplicates
+    remove_duplicates,
     rotate_v1, rotate_v2, rotate_v3,
     summarize_ranges,
     three_sum,