diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs
index c4d16ba633b8..e8c9d26fb3b5 100644
--- a/library/core/src/lib.rs
+++ b/library/core/src/lib.rs
@@ -182,6 +182,7 @@
 #![feature(staged_api)]
 #![feature(stmt_expr_attributes)]
 #![feature(strict_provenance_lints)]
+#![feature(target_feature_inline_always)]
 #![feature(trait_alias)]
 #![feature(transparent_unions)]
 #![feature(try_blocks)]
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index 8bec157e4e6e..b213fa749177 100644
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -309,6 +309,7 @@
 #![feature(staged_api)]
 #![feature(stmt_expr_attributes)]
 #![feature(strict_provenance_lints)]
+#![feature(target_feature_inline_always)]
 #![feature(thread_local)]
 #![feature(try_blocks)]
 #![feature(try_trait_v2)]