diff --git a/src/forge/AllZoneUtil.java b/src/forge/AllZoneUtil.java
index 322c6b5fe40..cb1e423545f 100644
--- a/src/forge/AllZoneUtil.java
+++ b/src/forge/AllZoneUtil.java
@@ -323,6 +323,9 @@ public class AllZoneUtil {
 		}
 	}
 	
+	/**
+	 * a CardListFilter to get all cards that are tapped
+	 */
 	public static CardListFilter tapped = new CardListFilter() {
 		public boolean addCard(Card c) {
 			return c.isTapped();