diff --git a/src/DataTypes/JsonObject.php b/src/DataTypes/JsonObject.php
index 59086fc..57ba578 100644
--- a/src/DataTypes/JsonObject.php
+++ b/src/DataTypes/JsonObject.php
@@ -57,7 +57,7 @@ protected function convertOffset($offset)
     protected function convertValue($value, $offset)
     {
         if (is_null($value)) {
-            return new Null();
+            return new NullDataType();
         }
         $convertedOffset = $this->convertOffset($offset);
         $dataClass = $this->classes[$convertedOffset];
diff --git a/src/DataTypes/Null.php b/src/DataTypes/NullDataType.php
similarity index 89%
rename from src/DataTypes/Null.php
rename to src/DataTypes/NullDataType.php
index d30a9ae..c003c94 100644
--- a/src/DataTypes/Null.php
+++ b/src/DataTypes/NullDataType.php
@@ -8,7 +8,7 @@
 
 namespace DotMailer\Api\DataTypes;
 
-class Null implements IDataType
+class NullDataType implements IDataType
 {
 
     public function toJson()