diff --git a/src/awkward/_reducers.py b/src/awkward/_reducers.py
index 1c512ce532..bb8fc22675 100644
--- a/src/awkward/_reducers.py
+++ b/src/awkward/_reducers.py
@@ -62,7 +62,9 @@ def _dtype_for_kernel(cls, dtype: DTypeLike) -> DTypeLike:
         else:
             return dtype
 
-    _use32 = (ak._util.win or ak._util.bits32) and not ak._util.numpy2 and np.intp is np.int32
+    _use32 = ((ak._util.win or ak._util.bits32) and not ak._util.numpy2) or (
+        ak._util.numpy2 and np.intp is np.int32
+    )
 
     @classmethod
     def _promote_integer_rank(cls, given_dtype: DTypeLike) -> DTypeLike: