diff --git a/pex/cli/commands/lock.py b/pex/cli/commands/lock.py
index f8546c87e..b7f7ff178 100644
--- a/pex/cli/commands/lock.py
+++ b/pex/cli/commands/lock.py
@@ -757,8 +757,8 @@ def add_extra_arguments(
                 "1st argument resolves to a binary in a venv."
             ),
             func=cls._sync,
-        ) as update_parser:
-            cls._add_sync_arguments(update_parser)
+        ) as sync_parser:
+            cls._add_sync_arguments(sync_parser)
 
     def _resolve_targets(
         self,