diff --git a/src/bootstrap/tool.rs b/src/bootstrap/tool.rs
index ff6f7909a5a3b..d6e7f7872703e 100644
--- a/src/bootstrap/tool.rs
+++ b/src/bootstrap/tool.rs
@@ -870,10 +870,10 @@ tool_extended!((self, builder),
     Clippy, "src/tools/clippy", "clippy-driver", stable=true, in_tree=true, {};
     Miri, "src/tools/miri", "miri", stable=false, in_tree=true, {};
     CargoMiri, "src/tools/miri/cargo-miri", "cargo-miri", stable=false, in_tree=true, {};
-    Rls, "src/tools/rls", "rls", stable=true, {};
     // FIXME: tool_std is not quite right, we shouldn't allow nightly features.
     // But `builder.cargo` doesn't know how to handle ToolBootstrap in stages other than 0,
     // and this is close enough for now.
+    Rls, "src/tools/rls", "rls", stable=true, in_tree=true, tool_std=true, {};
     RustDemangler, "src/tools/rust-demangler", "rust-demangler", stable=false, in_tree=true, tool_std=true, {};
     Rustfmt, "src/tools/rustfmt", "rustfmt", stable=true, in_tree=true, {};
 );