diff --git a/designer-base/src/main/java/com/fr/design/javascript/ExportJavaScriptPane.java b/designer-base/src/main/java/com/fr/design/javascript/ExportJavaScriptPane.java
index 3561dc097f..9adbfff9bf 100644
--- a/designer-base/src/main/java/com/fr/design/javascript/ExportJavaScriptPane.java
+++ b/designer-base/src/main/java/com/fr/design/javascript/ExportJavaScriptPane.java
@@ -699,6 +699,7 @@ public class ExportJavaScriptPane extends AbstractHyperLinkPane<ExportJavaScript
                         if (parameterArr != null) {
                             js.setParameters(parameterArr);
                         }
+                        parameterArr = null;
                         fireTableDataChanged();
                     }
                 });