diff --git a/wicket-jquery-ui/src/main/java/com/googlecode/wicket/jquery/ui/form/autocomplete/AutoCompleteTextField.java b/wicket-jquery-ui/src/main/java/com/googlecode/wicket/jquery/ui/form/autocomplete/AutoCompleteTextField.java
index f76aaa6d5f..641d264bc0 100644
--- a/wicket-jquery-ui/src/main/java/com/googlecode/wicket/jquery/ui/form/autocomplete/AutoCompleteTextField.java
+++ b/wicket-jquery-ui/src/main/java/com/googlecode/wicket/jquery/ui/form/autocomplete/AutoCompleteTextField.java
@@ -69,6 +69,10 @@ public abstract class AutoCompleteTextField<T extends Serializable> extends Text
 	private List<T> choices;
 
 
+	/**
+	 * Setting this flag to true adds some extra protection at client side
+	 * preventing users to be able to select stale elements.
+	 */
 	private boolean preventSelectWhileQueryIsRunning = false;
 
 	private AutoCompleteBehavior autoCompleteBehavior;