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-rw-r--r--compiler/rustc_feature/src/unstable.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs
index 07f928b8c88..f2b9121ffa7 100644
--- a/compiler/rustc_feature/src/unstable.rs
+++ b/compiler/rustc_feature/src/unstable.rs
@@ -556,6 +556,8 @@ declare_features! (
     (incomplete, loop_match, "1.90.0", Some(132306)),
     /// Allow `macro_rules!` attribute rules
     (unstable, macro_attr, "CURRENT_RUSTC_VERSION", Some(83527)),
+    /// Allow `macro_rules!` derive rules
+    (unstable, macro_derive, "CURRENT_RUSTC_VERSION", Some(143549)),
     /// Give access to additional metadata about declarative macro meta-variables.
     (unstable, macro_metavar_expr, "1.61.0", Some(83527)),
     /// Provides a way to concatenate identifiers using metavariable expressions.