diff --git a/pandas/tests/test_series.py b/pandas/tests/test_series.py
index 91c417a8e7380..eb566fa459840 100644
--- a/pandas/tests/test_series.py
+++ b/pandas/tests/test_series.py
@@ -531,7 +531,7 @@ def test_to_string(self):
         # pass float_format
         format = '%.4f'.__mod__
         result = self.ts.to_string(float_format=format)
-        result = [x.split()[1] for x in result.split('\n')[:-1]]
+        result = [x.split()[1] for x in result.split('\n')]
         expected = [format(x) for x in self.ts]
         self.assertEqual(result, expected)