diff --git a/numpy/lib/recfunctions.py b/numpy/lib/recfunctions.py

index fbfbca73d..486d3ee4f 100644

--- a/numpy/lib/recfunctions.py

+++ b/numpy/lib/recfunctions.py

@@ -8,12 +8,12 @@

 import itertools

 import numpy as np

 import numpy.ma as ma

+import warnings

 from numpy import ndarray, recarray

 from numpy.ma import MaskedArray

 from numpy.ma.mrecords import MaskedRecords

 from numpy.core.overrides import array_function_dispatch

 from numpy.lib._iotools import _is_string_like

-from numpy.testing import suppress_warnings

 _check_fill_value = np.ma.core._check_fill_value

@@ -975,8 +975,8 @@ def structured_to_unstructured(arr, dtype=None, copy=False, casting='unsafe'):

                                  'formats': dts,

                                  'offsets': offsets,

                                  'itemsize': arr.dtype.itemsize})

-    with suppress_warnings() as sup:  # until 1.16 (gh-12447)

-        sup.filter(FutureWarning, "Numpy has detected")

+    with warnings.catch_warnings():  # until 1.16 (gh-12447)

+        warnings.filterwarnings("always", "Numpy has detected", FutureWarning)

         arr = arr.view(flattened_fields)

     # next cast to a packed format with all fields converted to new dtype