diff --git a/src/main/java/org/apache/commons/collections4/bidimap/DualLinkedHashBidiMap.java b/src/main/java/org/apache/commons/collections4/bidimap/DualLinkedHashBidiMap.java
index c0c05d2d7..f609032f1 100644
--- a/src/main/java/org/apache/commons/collections4/bidimap/DualLinkedHashBidiMap.java
+++ b/src/main/java/org/apache/commons/collections4/bidimap/DualLinkedHashBidiMap.java
@@ -31,7 +31,7 @@ import java.util.Map;
  * Two <code>LinkedHashMap</code> instances are used in this class.
  * This provides fast lookups at the expense of storing two sets of map entries and two linked lists.
  *
- * @version $Id $
+ * @version $Id$
  * @since 4.0
  */
 public class DualLinkedHashBidiMap<K, V> extends AbstractDualBidiMap<K, V> implements Serializable {