diff --git a/src/pip/_internal/cli/cmdoptions.py b/src/pip/_internal/cli/cmdoptions.py
index 24dc9d14107..4bbfd09be50 100644
--- a/src/pip/_internal/cli/cmdoptions.py
+++ b/src/pip/_internal/cli/cmdoptions.py
@@ -967,7 +967,7 @@ def check_list_path_option(options):
     metavar="feature",
     action="append",
     default=[],
-    choices=["legacy-resolver"],
+    choices=[],
     help=("Enable deprecated functionality, that will be removed in the future."),
 )  # type: Callable[..., Option]