diff --git a/tests/test_sat/test_ers.py b/tests/test_sat/test_ers.py
index 35afb4ba..2f4e5b25 100755
--- a/tests/test_sat/test_ers.py
+++ b/tests/test_sat/test_ers.py
@@ -78,7 +78,7 @@ def test_read_ssm(self):
                                              'frozen_prob',
                                              'snow_prob']
         assert len(result.data) == 478
-        assert result.data.ix[15].name == datetime(1992, 1, 27, 21, 11, 42)
+        assert result.data.ix[15].name == datetime(1992, 1, 27, 21, 11, 42, 55)
         assert result.data.ix[15]['sm'] == 57
         assert result.data.ix[15]['sm_noise'] == 7
         assert result.data.ix[15]['frozen_prob'] == 18