diff --git a/src/main/java/org/apache/commons/collections4/sequence/CommandVisitor.java b/src/main/java/org/apache/commons/collections4/sequence/CommandVisitor.java
index e0535f8568..f1b4dd4487 100644
--- a/src/main/java/org/apache/commons/collections4/sequence/CommandVisitor.java
+++ b/src/main/java/org/apache/commons/collections4/sequence/CommandVisitor.java
@@ -105,7 +105,7 @@
  *   }
  *
  *   public String toString() {
- *     StringBuffer buffer = new StringBuffer();
+ *     StringBuilder buffer = new StringBuilder();
  *     for (Iterator iter = v.iterator(); iter.hasNext();) {
  *       buffer.append(' ').append(iter.next());
  *     }