diff --git a/app/__tests__/robots.test.js b/app/__tests__/robots.test.js
new file mode 100644
index 0000000..a2e996c
--- /dev/null
+++ b/app/__tests__/robots.test.js
@@ -0,0 +1,22 @@
+import {describe, it, expect, afterEach} from 'vitest'
+import robots from '../robots'
+
+describe('robots', () => {
+  const originalNodeEnv = process.env.NODE_ENV
+
+  afterEach(() => {
+    process.env.NODE_ENV = originalNodeEnv
+  })
+
+  it('autorise l\'indexation en production', () => {
+    process.env.NODE_ENV = 'production'
+
+    expect(robots().rules).toEqual({userAgent: '*', allow: '/'})
+  })
+
+  it('bloque l\'indexation hors production', () => {
+    process.env.NODE_ENV = 'development'
+
+    expect(robots().rules).toEqual({userAgent: '*', disallow: '/'})
+  })
+})
diff --git a/app/robots.js b/app/robots.js
index c3e7dd2..8519f3a 100644
--- a/app/robots.js
+++ b/app/robots.js
@@ -1,5 +1,5 @@
 export default function robots() {
-  const isProduction = process.env.NEXT_PUBLIC_ENV === 'production';
+  const isProduction = process.env.NODE_ENV === 'production';
 
   if (!isProduction) {
     return {