diff --git a/.gitignore b/.gitignore
index d5ac75f1a5d..bae496ce00d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,5 +9,6 @@ node_modules/
 .vscode/
 *.generated.ts
 *.generated.spec.ts
+deopt.out
 v8.log
 v8.out
diff --git a/package.json b/package.json
index b2052fda731..8d2c73b9405 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
   "types": "lib/fast-check.d.ts",
   "scripts": {
     "perf": "node perf/benchmark.js",
-    "profile": "node --prof --no-logfile-per-isolate perf/profiler.js && node --prof-process v8.log > v8.out",
+    "profile": "node --prof --no-logfile-per-isolate --trace-deopt --trace-opt-verbose perf/profiler.js > deopt.out && node --prof-process v8.log > v8.out",
     "prebuild": "ts-node prebuild/prebuild.ts",
     "build": "tsc",
     "build:publish-cjs": "tsc -p tsconfig.publish.json",