diff --git a/pom.xml b/pom.xml
index b8f2e53..4b91faa 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,7 +11,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.change_vision.astah.extension.plugin</groupId>
 	<artifactId>script</artifactId>
-    <version>2.1.2</version>
+    <version>2.1.3</version>
 	<packaging>jar</packaging>
 	<name>%bundle.name</name>
 	<description>%bundle.description</description>
diff --git a/src/main/java/com/change_vision/astah/extension/plugin/script/ScriptViewContext.java b/src/main/java/com/change_vision/astah/extension/plugin/script/ScriptViewContext.java
index 3800504..f6d6a46 100644
--- a/src/main/java/com/change_vision/astah/extension/plugin/script/ScriptViewContext.java
+++ b/src/main/java/com/change_vision/astah/extension/plugin/script/ScriptViewContext.java
@@ -33,6 +33,16 @@ public class ScriptViewContext {
     public ScriptEngineManager scriptEngineManager;
     public String encoding = "UTF-8";
 
+    static {
+        try {
+            if (System.getProperty("nashorn.args") == null) {
+                System.setProperty("nashorn.args", "--language=es6");
+            }
+        } catch (SecurityException e) {
+            e.printStackTrace();
+        }
+    }
+
     public ScriptViewContext() {
         scriptEngineManager = new ScriptEngineManager();