diff --git a/testsuite/MDAnalysisTests/coordinates/test_xdr.py b/testsuite/MDAnalysisTests/coordinates/test_xdr.py
index 908c9be9a8..6f768cd6e1 100644
--- a/testsuite/MDAnalysisTests/coordinates/test_xdr.py
+++ b/testsuite/MDAnalysisTests/coordinates/test_xdr.py
@@ -903,7 +903,7 @@ def test_persistent_offsets_readonly(self, tmpdir):
 
         filename = str(tmpdir.join(os.path.basename(self.filename)))
         # try to write a offsets file
-        with (pytest.warns(UserWarning, match="Couldn't save offsets") and
+        with (pytest.warns(UserWarning, match="Couldn't save offsets") or
               pytest.warns(UserWarning, match="Cannot write")):
             self._reader(filename)
         assert_equal(os.path.exists(XDR.offsets_filename(filename)), False)