diff --git a/crates/mbe/src/benchmark.rs b/crates/mbe/src/benchmark.rs
index f73e188c79..19ba5c7a15 100644
--- a/crates/mbe/src/benchmark.rs
+++ b/crates/mbe/src/benchmark.rs
@@ -215,7 +215,7 @@ fn invocation_fixtures(
 
                 token_trees.push(subtree.into());
             }
-            Op::Ignore { .. } | Op::Index { .. } | Op::Count { .. } | Op::Length { .. } => {}
+            Op::Ignore { .. } | Op::Index { .. } | Op::Count { .. } | Op::Len { .. } => {}
         };
 
         // Simple linear congruential generator for deterministic result