diff --git a/src/Model/Behavior/UploadBehavior.php b/src/Model/Behavior/UploadBehavior.php
index f4d13507..0928864e 100644
--- a/src/Model/Behavior/UploadBehavior.php
+++ b/src/Model/Behavior/UploadBehavior.php
@@ -25,7 +25,17 @@ class UploadBehavior extends Behavior
      */
     public function initialize(array $config)
     {
-        $this->config(Hash::normalize($config));
+        $configs = [];
+        foreach ($config as $field => $settings) {
+            if (is_int($field)) {
+                $configs[$settings] = [];
+            } else {
+                $configs[$field] = $settings;
+            }
+        }
+
+        $this->_config = [];
+        $this->config($configs);
 
         Type::map('upload.file', 'Josegonzalez\Upload\Database\Type\FileType');
         $schema = $this->_table->schema();
diff --git a/tests/TestCase/Model/Behavior/UploadBehaviorTest.php b/tests/TestCase/Model/Behavior/UploadBehaviorTest.php
index 52fdff86..4bb5641f 100644
--- a/tests/TestCase/Model/Behavior/UploadBehaviorTest.php
+++ b/tests/TestCase/Model/Behavior/UploadBehaviorTest.php
@@ -71,6 +71,32 @@ public function testInitialize()
         $behavior->initialize($this->settings);
     }
 
+    public function testInitializeIndexedConfig()
+    {
+        $settings = ['field'];
+        $table = $this->getMock('Cake\ORM\Table');
+        $schema = $this->getMock('Cake\Database\Schema\Table', [], [$table, []]);
+        $schema->expects($this->once())
+               ->method('columnType')
+               ->with('field', 'upload.file');
+        $table->expects($this->at(0))
+              ->method('schema')
+              ->will($this->returnValue($schema));
+        $table->expects($this->at(1))
+              ->method('schema')
+              ->will($this->returnValue($schema));
+
+        $methods = array_diff($this->behaviorMethods, ['initialize', 'config']);
+        $behavior = $this->getMock('Josegonzalez\Upload\Model\Behavior\UploadBehavior', $methods, [$table, $settings], '', false);
+        $reflection = new ReflectionClass($behavior);
+        $property = $reflection->getProperty('_table');
+        $property->setAccessible(true);
+        $property->setValue($behavior, $table);
+        $behavior->initialize($settings);
+
+        $this->assertEquals(['field' => []], $behavior->config());
+    }
+
     public function testBeforeMarshalOk()
     {
         $validator = $this->getMock('Cake\Validation\Validator');