diff --git a/src/main/java/org/gcube/portlets/widgets/wsexplorer/client/view/grid/AbstractItemsCellTable.java b/src/main/java/org/gcube/portlets/widgets/wsexplorer/client/view/grid/AbstractItemsCellTable.java
index 5fdb9bf..556e4e4 100644
--- a/src/main/java/org/gcube/portlets/widgets/wsexplorer/client/view/grid/AbstractItemsCellTable.java
+++ b/src/main/java/org/gcube/portlets/widgets/wsexplorer/client/view/grid/AbstractItemsCellTable.java
@@ -68,7 +68,7 @@ public abstract class AbstractItemsCellTable<T> {
 //		initTable(cellTable, null, null);
 		sortedCellTable.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.ENABLED);
 
-		ssm = new SingleSelectionModel<>();
+		ssm = new SingleSelectionModel<T>();
 		sortedCellTable.setSelectionModel(ssm);
 		ssm.addSelectionChangeHandler(new Handler() {
 		    @Override