diff --git a/io.sc.engine.rule.core/src/main/java/io/sc/engine/rule/core/code/generator/impl/ParameterGenerator.java b/io.sc.engine.rule.core/src/main/java/io/sc/engine/rule/core/code/generator/impl/ParameterGenerator.java
index 4fe985df..09f88392 100644
--- a/io.sc.engine.rule.core/src/main/java/io/sc/engine/rule/core/code/generator/impl/ParameterGenerator.java
+++ b/io.sc.engine.rule.core/src/main/java/io/sc/engine/rule/core/code/generator/impl/ParameterGenerator.java
@@ -91,7 +91,8 @@ public class ParameterGenerator {
                             String tpl = "${className} ${fieldName} =new java.util.HashMap(); //${name}";
                             sb.append(StringUtil.format(tpl, variables)).append("\n");
                         } else {
-                            String tpl = "${className} ${fieldName} =new ${className}(); //${name}";
+                            //String tpl = "${className} ${fieldName} =new ${className}(); //${name}";
+                            String tpl = "${className} ${fieldName}; //${name}";
                             sb.append(StringUtil.format(tpl, variables)).append("\n");
                         }
                     }