diff --git a/parse.php b/parse.php
index 554d687..f74e07b 100644
--- a/parse.php
+++ b/parse.php
@@ -160,13 +160,13 @@ public function dataType($type,$params){
 				case 'increment':
 					$return = array(
 						"__op" => "Increment",
-						"amount" => $params[0]
+						"amount" => $params
 					);
 					break;
 				case 'decrement':
 					$return = array(
 						"__op" => "Decrement",
-						"amount" => $params[0]
+						"amount" => $params
 					);
 					break;
 				default:
diff --git a/parseObject.php b/parseObject.php
index b6b8f39..b27e062 100644
--- a/parseObject.php
+++ b/parseObject.php
@@ -59,11 +59,11 @@ public function update($id){
 		}
 	}
 
-	public function increment($field,$amount){
+	public function increment($field, $amount){
 		$this->data[$field] = $this->dataType('increment', $amount);
 	}
 
-	public function decrement($id){
+	public function decrement($field, $amount){
 		$this->data[$field] = $this->dataType('decrement', $amount);
 	}