diff --git a/src/main/java/org/gcube/portlets/widgets/wstaskexecutor/client/WsTaskExecutorWidget.java b/src/main/java/org/gcube/portlets/widgets/wstaskexecutor/client/WsTaskExecutorWidget.java
index 07cedc3..b952220 100644
--- a/src/main/java/org/gcube/portlets/widgets/wstaskexecutor/client/WsTaskExecutorWidget.java
+++ b/src/main/java/org/gcube/portlets/widgets/wstaskexecutor/client/WsTaskExecutorWidget.java
@@ -290,7 +290,7 @@ public class WsTaskExecutorWidget {
 								return;
 
 							List<String> listMessages = result.getOutputMessages();
-							String outMsg = "<ul style=\"margin:5px;\">";
+							String outMsg = "<ul style=\"margin:5px; word-break: break-all;\">";
 							for (String msg : listMessages) {
 								outMsg+="<li>"+msg+"</li><br/>";
 							}