diff --git a/tests/numpy/manipulation_functions_test.py b/tests/numpy/manipulation_functions_test.py
index 697b5fd6da..83a534cc8d 100644
--- a/tests/numpy/manipulation_functions_test.py
+++ b/tests/numpy/manipulation_functions_test.py
@@ -8,7 +8,7 @@
 seed = pytest.seed
 
 
-class TestJoin:
+class TestNumpyManipulationFunctions:
 
     @pytest.mark.parametrize("size", pytest.prob_size)
     @pytest.mark.parametrize("dtype", [int, ak.int64, ak.uint64, float, ak.float64, bool, ak.bool_])