diff --git a/src/client-side-control-challenge.php b/src/client-side-control-challenge.php
index 00eeeda6..119d1de1 100755
--- a/src/client-side-control-challenge.php
+++ b/src/client-side-control-challenge.php
@@ -44,7 +44,7 @@ public function __construct (){
 
 				//initialize encoder
 				require_once __SITE_ROOT__.'/classes/EncodingHandler.php';
-				$Encoder = new EncodingHandler();
+				$this->Encoder = new EncodingHandler();
 
 			} catch(Exception $e){
 				echo $CustomErrorHandler->FormatError($e, "ClientFields.__construct()");
@@ -517,4 +517,4 @@ function onSubmitOfForm(/*HTMLFormElement*/ theForm){
 	if (lSubmitOccured){
 		document.getElementById("id-client-side-control-challenge-output-div").style.display="";
 	}// end if lSubmitOccured
-</script>
\ No newline at end of file
+</script>