diff --git a/src/Symfony/Bundle/DebugBundle/composer.json b/src/Symfony/Bundle/DebugBundle/composer.json
index ca55aba84c4b..c122ae3a3dfb 100644
--- a/src/Symfony/Bundle/DebugBundle/composer.json
+++ b/src/Symfony/Bundle/DebugBundle/composer.json
@@ -31,9 +31,8 @@
         "symfony/dependency-injection": "For using as a service from the container"
     },
     "autoload": {
-        "psr-0": { "Symfony\\Bundle\\DebugBundle\\": "" }
+        "psr-4": { "Symfony\\Bundle\\DebugBundle\\": "" }
     },
-    "target-dir": "Symfony/Bundle/DebugBundle",
     "minimum-stability": "dev",
     "extra": {
         "branch-alias": {
diff --git a/src/Symfony/Component/VarDumper/composer.json b/src/Symfony/Component/VarDumper/composer.json
index dbd0142201df..d6f6b667d78a 100644
--- a/src/Symfony/Component/VarDumper/composer.json
+++ b/src/Symfony/Component/VarDumper/composer.json
@@ -26,9 +26,8 @@
     },
     "autoload": {
         "files": [ "Resources/functions/dump.php" ],
-        "psr-0": { "Symfony\\Component\\VarDumper\\": "" }
+        "psr-4": { "Symfony\\Component\\VarDumper\\": "" }
     },
-    "target-dir": "Symfony/Component/VarDumper",
     "minimum-stability": "dev",
     "extra": {
         "branch-alias": {