diff --git a/workflow/engine/classes/model/Translation.php b/workflow/engine/classes/model/Translation.php
index c69e9bb6a..ea9b82719 100755
--- a/workflow/engine/classes/model/Translation.php
+++ b/workflow/engine/classes/model/Translation.php
@@ -175,10 +175,9 @@ class Translation extends BaseTranslation
             fwrite( $f, "?>" );
             fclose( $f );
 
-            $json = new Services_JSON();
-
+            //$json = new Services_JSON(); DEPRECATED
             $f = fopen( $cacheFileJS, 'w' );
-            fwrite( $f, "var G_STRINGS =" . $json->encode( $translationJS ) . ";\n" );
+            fwrite( $f, "var G_STRINGS =" . Bootstrap::json_encode( $translationJS ) . ";\n" );
             fclose( $f );
 
             $res['cacheFile'] = $cacheFile;