diff --git a/src/wasm-lib/kcl/benches/compiler_benchmark.rs b/src/wasm-lib/kcl/benches/compiler_benchmark.rs
index 4c78a27cd..24f818c64 100644
--- a/src/wasm-lib/kcl/benches/compiler_benchmark.rs
+++ b/src/wasm-lib/kcl/benches/compiler_benchmark.rs
@@ -1,24 +1,32 @@
-use criterion::{criterion_group, criterion_main, Criterion};
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
 
-pub fn criterion_benchmark(c: &mut Criterion) {
-    c.bench_function("parse + lex cube", |b| b.iter(|| lex_and_parse(CUBE_PROGRAM)));
-    c.bench_function("parse + lex big kitt", |b| {
-        b.iter(|| lex_and_parse(include_str!("../../tests/executor/inputs/kittycad_svg.kcl")))
-    });
-    c.bench_function("parse + lex pipes_on_pipes", |b| {
-        b.iter(|| lex_and_parse(include_str!("../../tests/executor/inputs/pipes_on_pipes.kcl")))
-    });
+pub fn bench_lex(c: &mut Criterion) {
+    c.bench_function("lex_cube", |b| b.iter(|| lex(CUBE_PROGRAM)));
+    c.bench_function("lex_big_kitt", |b| b.iter(|| lex(KITT_PROGRAM)));
+    c.bench_function("lex_pipes_on_pipes", |b| b.iter(|| lex(PIPES_PROGRAM)));
+}
+
+pub fn bench_lex_parse(c: &mut Criterion) {
+    c.bench_function("parse_lex_cube", |b| b.iter(|| lex_and_parse(CUBE_PROGRAM)));
+    c.bench_function("parse_lex_big_kitt", |b| b.iter(|| lex_and_parse(KITT_PROGRAM)));
+    c.bench_function("parse_lex_pipes_on_pipes", |b| b.iter(|| lex_and_parse(PIPES_PROGRAM)));
+}
+
+fn lex(program: &str) {
+    black_box(kcl_lib::tokeniser::lexer(program));
 }
 
 fn lex_and_parse(program: &str) {
     let tokens = kcl_lib::tokeniser::lexer(program);
     let parser = kcl_lib::parser::Parser::new(tokens);
-    parser.ast().unwrap();
+    black_box(parser.ast().unwrap());
 }
 
-criterion_group!(benches, criterion_benchmark);
+criterion_group!(benches, bench_lex, bench_lex_parse);
 criterion_main!(benches);
 
+const KITT_PROGRAM: &str = include_str!("../../tests/executor/inputs/kittycad_svg.kcl");
+const PIPES_PROGRAM: &str = include_str!("../../tests/executor/inputs/pipes_on_pipes.kcl");
 const CUBE_PROGRAM: &str = r#"fn cube = (pos, scale) => {
   const sg = startSketchAt(pos)
     |> line([0, scale], %)