diff --git a/src/main/java/org/gcube/portlets/user/td/client/ribbon/ReviewToolBar.java b/src/main/java/org/gcube/portlets/user/td/client/ribbon/ReviewToolBar.java
index c5bcd1f..8098cee 100644
--- a/src/main/java/org/gcube/portlets/user/td/client/ribbon/ReviewToolBar.java
+++ b/src/main/java/org/gcube/portlets/user/td/client/ribbon/ReviewToolBar.java
@@ -62,7 +62,7 @@ public class ReviewToolBar {
 		validationGroup.add(validationLayout);
 
 		rulesButton = new TextButton("New Rule",
-				TabularDataResources.INSTANCE.ruleadd32());
+				TabularDataResources.INSTANCE.ruleAdd32());
 		rulesButton.setScale(ButtonScale.LARGE);
 		rulesButton.setIconAlign(IconAlign.TOP);
 		rulesButton.setToolTip("Define a new validation rule");