diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 35a6b4818..627f12dfe 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -45,6 +45,13 @@ yarn start
 
 L'application est exécuté sur https://localhost:8080/mon-entreprise pour la version française et http://localhost:8080/infrance pour la version anglaise.
 
+Pour activer le tracing Redux:
+
+```
+REDUX_TRACE=true yarn start
+```
+
+
 ### Messages de commit
 
 A mettre sans retenue dans les messages de commit :
diff --git a/mon-entreprise/source/Provider.tsx b/mon-entreprise/source/Provider.tsx
index 7d4b88e0e..17ea9d6ec 100644
--- a/mon-entreprise/source/Provider.tsx
+++ b/mon-entreprise/source/Provider.tsx
@@ -18,8 +18,17 @@ declare global {
 		__REDUX_DEVTOOLS_EXTENSION_COMPOSE__: any
 	}
 }
-
-const composeEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose
+if (process.env.REDUX_TRACE) {
+	console.log('going to trace')
+}
+const composeEnhancers =
+	(process.env.REDUX_TRACE
+		? window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ &&
+		  window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__({
+				trace: true,
+				traceLimit: 25,
+		  })
+		: window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__) || compose
 
 if (
 	process.env.NODE_ENV === 'production' &&
diff --git a/mon-entreprise/webpack.dev.js b/mon-entreprise/webpack.dev.js
index a2e2b8f9e..c0c8b51bb 100644
--- a/mon-entreprise/webpack.dev.js
+++ b/mon-entreprise/webpack.dev.js
@@ -19,7 +19,10 @@ module.exports = {
 	plugins: [
 		...common.plugins,
 		...HTMLPlugins(),
-		new webpack.EnvironmentPlugin({ NODE_ENV: 'development' }),
+		new webpack.EnvironmentPlugin({
+			NODE_ENV: 'development',
+			REDUX_TRACE: false,
+		}),
 		new webpack.HotModuleReplacementPlugin(),
 	],
 }