diff --git a/src/tools/tidy/src/target_specific_tests.rs b/src/tools/tidy/src/target_specific_tests.rs
index de022be28948..c6136a18bd8c 100644
--- a/src/tools/tidy/src/target_specific_tests.rs
+++ b/src/tools/tidy/src/target_specific_tests.rs
@@ -6,7 +6,7 @@ use std::path::Path;
 
 use crate::walk::filter_not_rust;
 
-const COMMENT: &str = "//";
+const COMMENT: &str = "//@";
 const LLVM_COMPONENTS_HEADER: &str = "needs-llvm-components:";
 const COMPILE_FLAGS_HEADER: &str = "compile-flags:";