diff --git a/composer.json b/composer.json
index 6590be7..de179b9 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,7 @@
       "src/Knapsack/utility_functions.php"
     ],
     "psr-4": {
-      "Knapsack": "src/Knapsack",
+      "Knapsack\\": "src/Knapsack",
       "tests\\helpers\\Knapsack\\": "tests/helpers/Knapsack/"
     }
   }