diff --git a/third_party/2and3/click/types.pyi b/third_party/2and3/click/types.pyi
index 83fe905a4..39449555c 100644
--- a/third_party/2and3/click/types.pyi
+++ b/third_party/2and3/click/types.pyi
@@ -27,7 +27,11 @@ class CompositeParamType(ParamType):
 
 class Choice(ParamType):
     choices: Iterable[str]
-    def __init__(self, choices: Iterable[str]) -> None:
+    def __init__(
+        self,
+        choices: Iterable[str],
+        case_sensitive: bool = ...,
+    ) -> None:
         ...