BUG: fix broadcast_to for reference types

1 files changed, 3 insertions, 3 deletions

diff --git a/numpy/lib/stride_tricks.py b/numpy/lib/stride_tricks.py
index 0f46ed335..a5f247abf 100644
--- a/numpy/lib/stride_tricks.py
+++ b/numpy/lib/stride_tricks.py
@@ -60,9 +60,9 @@ def _broadcast_to(array, shape, subok, readonly):
     if any(size < 0 for size in shape):
         raise ValueError('all elements of broadcast shape must be non-'
                          'negative')
-    broadcast = np.nditer((array,), flags=['multi_index', 'zerosize_ok'],
-                          op_flags=['readonly'], itershape=shape, order='C'
-                          ).itviews[0]
+    broadcast = np.nditer(
+        (array,), flags=['multi_index', 'refs_ok', 'zerosize_ok'],
+        op_flags=['readonly'], itershape=shape, order='C').itviews[0]
     result = _maybe_view_as_subclass(array, broadcast)
     if not readonly and array.flags.writeable:
         result.flags.writeable = True