diff --git a/symfony/routing/3.3/config/routes.yaml b/symfony/routing/3.3/config/routes.yaml
index c3283aa2..3fab0c64 100644
--- a/symfony/routing/3.3/config/routes.yaml
+++ b/symfony/routing/3.3/config/routes.yaml
@@ -1,3 +1,3 @@
 #index:
 #    path: /
-#    controller: App\Controller\DefaultController::index
+#    defaults: { _controller: 'App\Controller\DefaultController::index' }
diff --git a/symfony/routing/4.0/config/packages/dev/routing.yaml b/symfony/routing/4.0/config/packages/dev/routing.yaml
new file mode 100644
index 00000000..4116679a
--- /dev/null
+++ b/symfony/routing/4.0/config/packages/dev/routing.yaml
@@ -0,0 +1,3 @@
+framework:
+    router:
+        strict_requirements: true
diff --git a/symfony/routing/4.0/config/packages/routing.yaml b/symfony/routing/4.0/config/packages/routing.yaml
new file mode 100644
index 00000000..368bc7f4
--- /dev/null
+++ b/symfony/routing/4.0/config/packages/routing.yaml
@@ -0,0 +1,3 @@
+framework:
+    router:
+        strict_requirements: ~
diff --git a/symfony/routing/4.0/config/routes.yaml b/symfony/routing/4.0/config/routes.yaml
new file mode 100644
index 00000000..c3283aa2
--- /dev/null
+++ b/symfony/routing/4.0/config/routes.yaml
@@ -0,0 +1,3 @@
+#index:
+#    path: /
+#    controller: App\Controller\DefaultController::index
diff --git a/symfony/routing/4.0/manifest.json b/symfony/routing/4.0/manifest.json
new file mode 100644
index 00000000..c0c66b64
--- /dev/null
+++ b/symfony/routing/4.0/manifest.json
@@ -0,0 +1,6 @@
+{
+    "copy-from-recipe": {
+        "config/": "%CONFIG_DIR%/"
+    },
+    "aliases": ["router"]
+}