diff --git a/bench/bench_crystal.yaml b/bench/bench_crystal.yaml
index d29682d0..9b3a9e4f 100644
--- a/bench/bench_crystal.yaml
+++ b/bench/bench_crystal.yaml
@@ -66,6 +66,6 @@ environments:
     include_sub_dir: src
     before_build:
       - shards install
-    build: shards build --release --mcpu=broadwell --verbose
+    build: shards build --release --no-debug --mcpu=native --verbose
     out_dir: bin
     run_cmd: app