diff --git a/README.rst b/README.rst
index c78a5890..ce7432dd 100644
--- a/README.rst
+++ b/README.rst
@@ -186,8 +186,7 @@ files stored in the root of the Symfony project:
 
     {
         "env": {
-            "APP_ENV": "dev",
-            "APP_DEBUG": "1"
+            "APP_ENV": "dev"
         }
     }
 
@@ -198,7 +197,6 @@ and ``.env.dist`` files:
 
     ###> your-recipe-name-here ###
     APP_ENV=dev
-    APP_DEBUG=1
     ###< your-recipe-name-here ###
 
 The ``###> your-recipe-name-here ###`` section separators are needed by Symfony
@@ -328,7 +326,6 @@ one used by ``symfony/framework-bundle``:
         },
         "env": {
             "APP_ENV": "dev",
-            "APP_DEBUG": "1",
             "APP_SECRET": "%generate(secret)%"
         },
         "gitignore": [
diff --git a/symfony/framework-bundle/3.3/manifest.json b/symfony/framework-bundle/3.3/manifest.json
index 3fd122b6..cada9b41 100644
--- a/symfony/framework-bundle/3.3/manifest.json
+++ b/symfony/framework-bundle/3.3/manifest.json
@@ -13,7 +13,6 @@
     },
     "env": {
         "APP_ENV": "dev",
-        "APP_DEBUG": "1",
         "APP_SECRET": "%generate(secret)%"
     },
     "gitignore": [