diff --git a/composer.json b/composer.json
index 3412fd4..879566f 100644
--- a/composer.json
+++ b/composer.json
@@ -2,11 +2,14 @@
   "name": "pecee/simple-router",
   "description": "Simple, fast PHP router that is easy to get integrated and in almost any project. Heavily inspired by the Laravel router.",
   "keywords": [
+    "router",
     "router",
     "routing",
+    "route",
+    "simple-php-router",
     "laravel",
     "pecee",
-    "route"
+    "php"
   ],
   "license": "MIT",
   "support": {
diff --git a/src/Pecee/Http/Input/Input.php b/src/Pecee/Http/Input/Input.php
index 0bd5ec1..e34d05c 100644
--- a/src/Pecee/Http/Input/Input.php
+++ b/src/Pecee/Http/Input/Input.php
@@ -283,15 +283,7 @@ class Input
             }
         }
 
-        $output = array_merge($_GET, $output);
-
-        if ($filter !== null) {
-            $output = array_filter($output, function ($key) use ($filter) {
-                return (in_array($key, $filter) === true);
-            }, ARRAY_FILTER_USE_KEY);
-        }
-
-        return $output;
+        return ($filter !== null) ? array_intersect_key($output, array_flip($filter)) : array_merge($_GET, $output);
     }
 
 }
\ No newline at end of file