diff --git a/zkwebui/WEB-INF/src/org/adempiere/webui/window/WTask.java b/zkwebui/WEB-INF/src/org/adempiere/webui/window/WTask.java
index ea2b5daa70..b0e0dc198b 100644
--- a/zkwebui/WEB-INF/src/org/adempiere/webui/window/WTask.java
+++ b/zkwebui/WEB-INF/src/org/adempiere/webui/window/WTask.java
@@ -114,7 +114,7 @@ public class WTask extends Window implements EventListener
 				while (true) {
 					try {
 						Thread.sleep(500);
-						Executions.activate(desktop);
+						Executions.activate(desktop, 500);
 						try {
 							StringBuffer sb = new StringBuffer();
 							sb.append(osTask.getOut())