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-rw-r--r--compiler/rustc_lint/src/lints.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/rustc_lint/src/lints.rs b/compiler/rustc_lint/src/lints.rs
index 7c5640f5959..eacc66b197a 100644
--- a/compiler/rustc_lint/src/lints.rs
+++ b/compiler/rustc_lint/src/lints.rs
@@ -81,6 +81,8 @@ pub enum BuiltinUnsafe {
     AllowInternalUnsafe,
     #[diag(lint_builtin_unsafe_block)]
     UnsafeBlock,
+    #[diag(lint_builtin_unsafe_extern_block)]
+    UnsafeExternBlock,
     #[diag(lint_builtin_unsafe_trait)]
     UnsafeTrait,
     #[diag(lint_builtin_unsafe_impl)]