diff --git a/src/main/java/org/apache/commons/collections/list/difference/DeleteCommand.java b/src/main/java/org/apache/commons/collections/list/difference/DeleteCommand.java
index 1ab0e64c5..0ca773700 100644
--- a/src/main/java/org/apache/commons/collections/list/difference/DeleteCommand.java
+++ b/src/main/java/org/apache/commons/collections/list/difference/DeleteCommand.java
@@ -50,6 +50,7 @@ public class DeleteCommand<T> extends EditCommand<T> {
      * visitDeleteCommand} method.
      * @param visitor the visitor to be accepted
      */    
+    @Override
     public void accept(CommandVisitor<T> visitor) {
         visitor.visitDeleteCommand(object);
     }    
diff --git a/src/main/java/org/apache/commons/collections/list/difference/InsertCommand.java b/src/main/java/org/apache/commons/collections/list/difference/InsertCommand.java
index 70b052ef7..d45328174 100644
--- a/src/main/java/org/apache/commons/collections/list/difference/InsertCommand.java
+++ b/src/main/java/org/apache/commons/collections/list/difference/InsertCommand.java
@@ -50,6 +50,7 @@ public class InsertCommand<T> extends EditCommand<T> {
      * visitInsertCommand} method.
      * @param visitor the visitor to be accepted
      */    
+    @Override
     public void accept(CommandVisitor<T> visitor) {
         visitor.visitInsertCommand(object);
     }
diff --git a/src/main/java/org/apache/commons/collections/list/difference/KeepCommand.java b/src/main/java/org/apache/commons/collections/list/difference/KeepCommand.java
index 5e52e82e3..6f694934e 100644
--- a/src/main/java/org/apache/commons/collections/list/difference/KeepCommand.java
+++ b/src/main/java/org/apache/commons/collections/list/difference/KeepCommand.java
@@ -52,6 +52,7 @@ public class KeepCommand<T> extends EditCommand<T> {
      * its {@link CommandVisitor#visitKeepCommand visitKeepCommand} method.
      * @param visitor the visitor to be accepted
      */    
+    @Override
     public void accept(CommandVisitor<T> visitor) {
         visitor.visitKeepCommand(object);
     }