diff --git a/Lib/test/test_capi.py b/Lib/test/test_capi.py
index 07ec623..a58c577 100644
--- a/Lib/test/test_capi.py
+++ b/Lib/test/test_capi.py
@@ -48,9 +48,9 @@
         (out, err) = p.communicate()
         self.assertEqual(out, b'')
         # This used to cause an infinite loop.
-        self.assertEqual(err.rstrip(),
+        self.assertTrue(err.rstrip().startswith(
                          b'Fatal Python error:'
-                         b' PyThreadState_Get: no current thread')
+                         b' PyThreadState_Get: no current thread'))
 
     def test_memoryview_from_NULL_pointer(self):
         self.assertRaises(ValueError, _testcapi.make_memoryview_from_NULL_pointer)