diff --git a/base/src/org/compiere/model/GridWindow.java b/base/src/org/compiere/model/GridWindow.java
index 8ebfd1bd92..78f7ff4539 100644
--- a/base/src/org/compiere/model/GridWindow.java
+++ b/base/src/org/compiere/model/GridWindow.java
@@ -69,7 +69,7 @@ public class GridWindow implements Serializable
 	/** Model last updated			*/
 	private Timestamp		m_modelUpdated = null;
 
-	private Set initTabs = new HashSet<GridTab>();
+	private Set<GridTab> initTabs = new HashSet<GridTab>();
 	
 	/**	Logger			*/
 	private static CLogger log = CLogger.getCLogger(GridWindow.class);