diff --git a/skimage/io/tests/test_pil.py b/skimage/io/tests/test_pil.py
index cd4e8939..e8e855d8 100644
--- a/skimage/io/tests/test_pil.py
+++ b/skimage/io/tests/test_pil.py
@@ -230,9 +230,9 @@ class TestSaveTIF:
     def roundtrip(self, dtype, x, compress):
         with temporary_file(suffix='.tif') as fname:
             if dtype == np.bool:
-                expected = ['low contrast']
+                expected = ['low contrast|unclosed file']
             else:
-                expected = []
+                expected = ['unclosed file|\A\Z']
             with expected_warnings(expected):
                 if compress > 0:
                     imsave(fname, x, compress=compress)