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-rw-r--r--compiler/rustc_parse/src/validate_attr.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_parse/src/validate_attr.rs b/compiler/rustc_parse/src/validate_attr.rs
index 700f5e78884..50a0366d9fe 100644
--- a/compiler/rustc_parse/src/validate_attr.rs
+++ b/compiler/rustc_parse/src/validate_attr.rs
@@ -287,6 +287,7 @@ pub fn check_builtin_meta_item(
                 | sym::rustc_do_not_implement_via_object
                 | sym::rustc_coinductive
                 | sym::const_trait
+                | sym::type_const
                 | sym::repr
                 | sym::align
                 | sym::deprecated