diff --git a/src/compare/diff.rs b/src/compare/diff.rs
index 6e1386df..a633be8b 100644
--- a/src/compare/diff.rs
+++ b/src/compare/diff.rs
@@ -737,7 +737,7 @@ fn compare_greater_block<'s>(
     let emacs_name = match rust.name.to_lowercase().as_str() {
         "center" => "center-block",
         "quote" => "quote-block",
-        _ => todo!(),
+        _ => "special-block",
     };
     if assert_name(emacs, emacs_name).is_err() {
         this_status = DiffStatus::Bad;