diff --git a/src/main/java/org/gcube/portlets/user/dataminerexecutor/client/experiments/ComputationStatusPanel.java b/src/main/java/org/gcube/portlets/user/dataminerexecutor/client/experiments/ComputationStatusPanel.java
index c60f16b..68987d0 100644
--- a/src/main/java/org/gcube/portlets/user/dataminerexecutor/client/experiments/ComputationStatusPanel.java
+++ b/src/main/java/org/gcube/portlets/user/dataminerexecutor/client/experiments/ComputationStatusPanel.java
@@ -88,8 +88,11 @@ public class ComputationStatusPanel extends SimpleContainer {
 
 		vert.add(new HtmlLayoutContainer("<p>Created, the id is " + computationId.getId() + "</p>"));
 
+		String opName=computationId.getOperatorName();
+		opName=opName.replaceAll("\\s+", "_");
+		
 		vert.add(new HtmlLayoutContainer("<p>DataMiner&gt;Computations&gt;"
-				+ computationId.getOperatorName().toUpperCase() + "_ID_" + computationId.getId() + "</p>"));
+				+ opName.toUpperCase() + "_ID_" + computationId.getId() + "</p>"));
 
 		TextButton equivalentRequestBtn = new TextButton();
 		equivalentRequestBtn.setText("Show");