diff --git a/composer.json b/composer.json
index c69465f..0ad69cd 100644
--- a/composer.json
+++ b/composer.json
@@ -60,9 +60,14 @@
             "Nelmio\\ApiDocBundle\\": ""
         },
         "exclude-from-classmap": [
-            "/Tests/"
+            "Tests/"
         ]
     },
+    "autoload-dev": {
+        "psr-4": {
+            "Nelmio\\ApiDocBundle\\Tests\\": "Tests/"
+        }
+    },
     "extra": {
         "branch-alias": {
             "dev-master": "4.0.x-dev"