diff --git a/src/Webservice/WebService.php b/src/Webservice/WebService.php
index 6fca314..438d14d 100644
--- a/src/Webservice/WebService.php
+++ b/src/Webservice/WebService.php
@@ -38,6 +38,7 @@ abstract class WebService
 
             $result = $this->call($sendSession);
             $data["result"][$this->func] = $result;
+            $data = $this->filterOutput($data);
 
         } catch (WebException $e) {
 
@@ -152,9 +153,21 @@ abstract class WebService
     /**
      * Allow subclasses to filter params by overriding this
      * @param $params
+     * @param array
      */
     protected function filterParams($params)
     {
         return $params;
     }
+
+    /**
+     * Allow subclasses to filter the output before it is sent
+     * by overriding this method 
+     * @param $params
+     * @return array
+     */
+    protected function filterOutput(array $data)
+    {
+        return $data;
+    }
 }