diff --git a/ph_statistical_methods/tests/test_confidence_intervals.py b/ph_statistical_methods/tests/test_confidence_intervals.py
index 224cd3c..ce3dbe9 100644
--- a/ph_statistical_methods/tests/test_confidence_intervals.py
+++ b/ph_statistical_methods/tests/test_confidence_intervals.py
@@ -29,3 +29,4 @@ def test_wilson_upper(num1, denom1, conf, res):
     assert wilson_upper(num1, denom1, conf) == res
 
 
+