diff --git a/autojs/src/main/assets/modules/__engines__.js b/autojs/src/main/assets/modules/__engines__.js
index 828617e6..9c428c78 100644
--- a/autojs/src/main/assets/modules/__engines__.js
+++ b/autojs/src/main/assets/modules/__engines__.js
@@ -18,17 +18,7 @@ module.exports = function(__runtime__, scope){
     }
 
     engines.myEngine = function(){
-        var engine = Object.create(rtEngines.myEngine());
-        if(!execArgv){
-            execArgv = {};
-            var iterator = engine.getTag("execution.config").arguments.entrySet().iterator();
-            while(iterator.hasNext()){
-                var entry = iterator.next();
-                execArgv[entry.getKey()] = entry.getValue();
-            }
-        }
-        engine.execArgv = execArgv;
-        return engine;
+        return rtEngines.myEngine();
     }
 
     engines.all = function(){
@@ -59,5 +49,14 @@ module.exports = function(__runtime__, scope){
         return config;
     }
 
+    var engine = engines.myEngine();
+    var execArgv = {};
+    var iterator = engine.getTag("execution.config").arguments.entrySet().iterator();
+    while(iterator.hasNext()){
+        var entry = iterator.next();
+        execArgv[entry.getKey()] = entry.getValue();
+    }
+    engine.execArgv = execArgv;
+
     return engines;
 }
\ No newline at end of file
diff --git a/autojs/src/main/java/com/stardust/autojs/engine/JavaScriptEngine.java b/autojs/src/main/java/com/stardust/autojs/engine/JavaScriptEngine.java
index 0754d7e9..586ade0d 100644
--- a/autojs/src/main/java/com/stardust/autojs/engine/JavaScriptEngine.java
+++ b/autojs/src/main/java/com/stardust/autojs/engine/JavaScriptEngine.java
@@ -1,7 +1,5 @@
 package com.stardust.autojs.engine;
 
-import androidx.annotation.CallSuper;
-
 import com.stardust.autojs.runtime.ScriptRuntime;
 import com.stardust.autojs.script.JavaScriptSource;
 import com.stardust.autojs.script.ScriptSource;
@@ -12,6 +10,7 @@ import com.stardust.autojs.script.ScriptSource;
 
 public abstract class JavaScriptEngine extends ScriptEngine.AbstractScriptEngine<JavaScriptSource> {
     private ScriptRuntime mRuntime;
+    private Object mExecArgv;
 
     @Override
     public Object execute(JavaScriptSource scriptSource) {
@@ -44,6 +43,17 @@ public abstract class JavaScriptEngine extends ScriptEngine.AbstractScriptEngine
         return (ScriptSource) getTag(TAG_SOURCE);
     }
 
+    public void setExecArgv(Object execArgv) {
+        if (mExecArgv != null) {
+            return;
+        }
+        mExecArgv = execArgv;
+    }
+
+    public Object getExecArgv() {
+        return mExecArgv;
+    }
+
     @Override
     public synchronized void destroy() {
         mRuntime.onExit();
@@ -53,6 +63,7 @@ public abstract class JavaScriptEngine extends ScriptEngine.AbstractScriptEngine
     @Override
     public String toString() {
         return "ScriptEngine@" + Integer.toHexString(hashCode()) + "{" +
+                "id=" + getId() + "," +
                 "source='" + getTag(TAG_SOURCE) + "'," +
                 "cwd='" + cwd() + "'" +
                 "}";