diff --git a/crates/hir-expand/src/inert_attr_macro.rs b/crates/hir-expand/src/inert_attr_macro.rs
index 4185b7b01895..77a88d999ba0 100644
--- a/crates/hir-expand/src/inert_attr_macro.rs
+++ b/crates/hir-expand/src/inert_attr_macro.rs
@@ -280,9 +280,8 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[
     ),
     gated!(no_core, CrateLevel, template!(Word), WarnFollowing, experimental!(no_core)),
     // RFC 2412
-    gated!(
-        optimize, Normal, template!(List: "size|speed"), ErrorPreceding, optimize_attribute,
-        experimental!(optimize),
+    ungated!(
+        optimize, Normal, template!(List: "size|speed|none"), ErrorPreceding
     ),
 
     gated!(ffi_pure, Normal, template!(Word), WarnFollowing, experimental!(ffi_pure)),