diff --git a/docs/source/generate_class_list.py b/docs/source/generate_class_list.py
index 982255d..b7be8fb 100644
--- a/docs/source/generate_class_list.py
+++ b/docs/source/generate_class_list.py
@@ -40,7 +40,7 @@ def write_dochtree(f: TextIOWrapper, title: str, items: list[str]):
     f.write('```{toctree}\n')
     f.write(':maxdepth: 1\n')
     f.write(f':caption: {title}:\n')
-    #f.write(':hidden:\n')
+    # f.write(':hidden:\n')
     for text in items:
         if not text.startswith('_'):
             f.write(f"{text}\n")
@@ -55,11 +55,11 @@ if __name__ == "__main__":
         f.write('# Classes and Modules\n\n')
 
         write_classes(f, ['BK*', 'WAGO_750_352'], 'pyhoff.devices', title='Bus coupler',
-                    description='These classes are bus couplers and are used to connect the IO bus terminals to a Ethernet interface.')
+                      description='These classes are bus couplers and are used to connect the IO bus terminals to a Ethernet interface.')
         write_classes(f, ['KL*'], 'pyhoff.devices', title='Beckhoff bus terminals')
         write_classes(f, ['WAGO*'], 'pyhoff.devices', title='WAGO bus terminals', exclude=['WAGO_750_352'])
         write_classes(f, ['*Terminal*'], 'pyhoff.devices', title='Generic bus terminals')
         write_classes(f, ['*'], 'pyhoff', title='Base classes',
-                    description='These classes are base classes for devices and are typically not used directly.')
+                      description='These classes are base classes for devices and are typically not used directly.')
         write_classes(f, ['*'], 'pyhoff.modbus', title='Modbus',
-                    description='This modbus implementation is used internally.')
+                      description='This modbus implementation is used internally.')