diff --git a/src/awkward/_v2/operations/structure/ak_broadcast_arrays.py b/src/awkward/_v2/operations/structure/ak_broadcast_arrays.py
index fec313a3dc..15bb57e3d2 100644
--- a/src/awkward/_v2/operations/structure/ak_broadcast_arrays.py
+++ b/src/awkward/_v2/operations/structure/ak_broadcast_arrays.py
@@ -7,7 +7,7 @@
 
 # @ak._v2._connect.numpy.implements("broadcast_arrays")
 def broadcast_arrays(*arrays, **kwargs):
-    raise NotImplementedError()
+    raise ak._v2._util.error(NotImplementedError)
 
 
 #     """