diff --git a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/editor/WPAttributeEditor.java b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/editor/WPAttributeEditor.java
index 6dd5cc3d0d..caad530735 100644
--- a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/editor/WPAttributeEditor.java
+++ b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/editor/WPAttributeEditor.java
@@ -68,7 +68,7 @@ public class WPAttributeEditor extends WEditor implements ContextMenuListener
 
 	private void initComponents() {
 		getComponent().setButtonImage("images/PAttribute10.png");
-		getComponent().addEventListener(Events.ON_CLICK, this);
+		// getComponent().addEventListener(Events.ON_CLICK, this); // IDEMPIERE-426 - dup listener, already set at WEditor
 
 		m_WindowNo = gridField.getWindowNo();
 		m_mPAttribute = gridField.getLookup();