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-rw-r--r--compiler/rustc_ast/src/lib.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_ast/src/lib.rs b/compiler/rustc_ast/src/lib.rs
index 2426a0cb7dd..f9b4d76f28f 100644
--- a/compiler/rustc_ast/src/lib.rs
+++ b/compiler/rustc_ast/src/lib.rs
@@ -13,7 +13,7 @@
 #![feature(const_default_impls)]
 #![feature(const_trait_impl)]
 #![feature(if_let_guard)]
-#![feature(label_break_value)]
+#![cfg_attr(bootstrap, feature(label_break_value))]
 #![feature(min_specialization)]
 #![feature(negative_impls)]
 #![feature(slice_internals)]