diff --git a/tests/test_turnbull.py b/tests/test_turnbull.py
index f3884f0..e41f1b8 100644
--- a/tests/test_turnbull.py
+++ b/tests/test_turnbull.py
@@ -28,7 +28,7 @@ def test_turnbull_simple():
 		'Time_R': [2.5, 2, 4, 6]
 	})
 	
-	xpoints, ypoints = yli.survival.calc_survfunc_turnbull(df['Time_L'], df['Time_R'])
+	xpoints, ypoints, _, _ = yli.survival.calc_survfunc_turnbull(df['Time_L'], df['Time_R'], ci=False)
 	
 	assert xpoints[0] == 0
 	assert ypoints[0] == 1