diff --git a/macro/Cargo.toml b/macro/Cargo.toml
index aa4ef384dc..c37728d284 100644
--- a/macro/Cargo.toml
+++ b/macro/Cargo.toml
@@ -21,7 +21,7 @@ quote = "1"
 regex = "1.10.6"
 syn = { version = "2", features = ["full"] }
 tblgen = { version = "0.3.6", features = [
-  "llvm19-0",
+  "llvm18-0",
 ], default-features = false, package = "tblgen-alt" }
 unindent = "0.2.3"