diff --git a/tests/test_preset_models.py b/tests/test_preset_models.py
index 93d8dd1..a365954 100644
--- a/tests/test_preset_models.py
+++ b/tests/test_preset_models.py
@@ -59,7 +59,7 @@ def test_SIDM(self):
         sidm = SIDM_parametric(0.5, 1.5, mass_ranges, collapse_times)
         _ = sidm.lensing_quantities()
         _ = preset_model_from_name('SIDM_parametric')
-        self._test_default_infall_model(sidm, 'HYBRID')
+        self._test_default_infall_model(sidm, 'hybrid')
 
     def test_ULDM(self):