diff --git a/tests/modelling/test_filter.py b/tests/modelling/test_filter.py
index b415364b..780e3ce0 100644
--- a/tests/modelling/test_filter.py
+++ b/tests/modelling/test_filter.py
@@ -48,7 +48,7 @@ class FilterTestCase(TestCase):
             columns=arange(array.shape[1]),
         )
 
-    def test_bad_input(self):
+    def test_bad_percentiles(self):
         f = self.f
 
         bad_percentiles = [