diff --git a/tests/test_filters.py b/tests/test_filters.py
index 0e9a019..a0086fc 100644
--- a/tests/test_filters.py
+++ b/tests/test_filters.py
@@ -67,7 +67,6 @@ class TestFilterInitialization:
 
     def test_spine_morphos(self, fz):
         fz.process_filters(filters=["SpineMorphologies"])
-        fz.process_filters(filters=["SpineMorphologies"])
 
 
 @pytest.mark.slow