diff --git a/tests/generators/operations/main.py b/tests/generators/operations/main.py
index 204f5023a..51cd50706 100644
--- a/tests/generators/operations/main.py
+++ b/tests/generators/operations/main.py
@@ -47,7 +47,7 @@ if __name__ == "__main__":
         'attestation',
         'consolidation_request',
         'deposit_request',
-        'voluntary_exit'
+        'voluntary_exit',
         'withdrawal_request',
     ]}
     electra_mods = combine_mods(_new_electra_mods, deneb_mods)