diff --git a/tests/test_JaroWinkler.py b/tests/test_JaroWinkler.py
index 667d87c..b1d4111 100644
--- a/tests/test_JaroWinkler.py
+++ b/tests/test_JaroWinkler.py
@@ -13,7 +13,7 @@ def _jaro_winkler_similarity(self, s1, s2, result):
         self.assertAlmostEqual(jarowinkler_similarity(s2, s1), result, places=4)
 
     def test_hash_special_case(self):
-        self._jaro_winkler_similarity([0, -1], [0, -2], 0.6666)
+        self._jaro_winkler_similarity([0, -1], [0, -2], 0.66666)
 
     def test_edge_case_lengths(self):
         self._jaro_winkler_similarity('', '', 0)
@@ -39,4 +39,4 @@ def test_edge_case_lengths(self):
 
 
 if __name__ == '__main__':
-    unittest.main()
\ No newline at end of file
+    unittest.main()