diff --git a/pymatgen/analysis/defects/tests/test_defect_compatibility.py b/pymatgen/analysis/defects/tests/test_defect_compatibility.py
index 012eec30be6..be8ffaab8d0 100644
--- a/pymatgen/analysis/defects/tests/test_defect_compatibility.py
+++ b/pymatgen/analysis/defects/tests/test_defect_compatibility.py
@@ -110,7 +110,7 @@ def test_process_entry(self):
         self.assertAlmostEqual(dentry.corrections["charge_correction"], 5.44595036)
 
         # test over delocalized free carriers which forces skipping charge correction
-        params = self.bandfill_params.copy() # No Freysoldt metadata
+        params = self.bandfill_params.copy()  # No Freysoldt metadata
         params.update(
             {
                 "hybrid_cbm": params["cbm"] + 0.2,