diff --git a/starlark/src/typing/callable_param.rs b/starlark/src/typing/callable_param.rs
index 12abfb0a9..a260fd8fa 100644
--- a/starlark/src/typing/callable_param.rs
+++ b/starlark/src/typing/callable_param.rs
@@ -265,8 +265,7 @@ impl ParamSpec {
     }
 
     /// `*, x, y`.
-    #[cfg(test)]
-    pub(crate) fn new_named_only(
+    pub fn new_named_only(
         named_only: impl IntoIterator<Item = (ArcStr, ParamIsRequired, Ty)>,
     ) -> crate::Result<ParamSpec> {
         Self::new_parts([], [], None, named_only, None)