diff --git a/crates/ruff_benchmark/benches/red_knot.rs b/crates/ruff_benchmark/benches/red_knot.rs
index a70a4f3b24316..bf0318253cc7a 100644
--- a/crates/ruff_benchmark/benches/red_knot.rs
+++ b/crates/ruff_benchmark/benches/red_knot.rs
@@ -280,6 +280,12 @@ fn benchmark_many_string_assignments(criterion: &mut Criterion) {
                             s += "attr7"
                         if x.attr8:
                             s += "attr8"
+                        if x.attr9:
+                            s += "attr9"
+                        if x.attr10:
+                            s += "attr10"
+                        if x.attr11:
+                            s += "attr11"
                         return s
                     "#,
                 )