diff --git a/src/main/java/org/apache/commons/lang3/text/CompositeFormat.java b/src/main/java/org/apache/commons/lang3/text/CompositeFormat.java
index 07d753542..6bd903e4e 100644
--- a/src/main/java/org/apache/commons/lang3/text/CompositeFormat.java
+++ b/src/main/java/org/apache/commons/lang3/text/CompositeFormat.java
@@ -63,7 +63,7 @@ public class CompositeFormat extends Format {
      * @return <code>toAppendTo</code>
      * @see Format#format(Object, StringBuffer, FieldPosition)
      */
-    @Override
+    @Override // Therefore has to use StringBuffer
     public StringBuffer format(Object obj, StringBuffer toAppendTo,
             FieldPosition pos) {
         return formatter.format(obj, toAppendTo, pos);