diff --git a/src/java/org/apache/poi/util/StringUtil.java b/src/java/org/apache/poi/util/StringUtil.java
index cf313129a..378b1af0a 100644
--- a/src/java/org/apache/poi/util/StringUtil.java
+++ b/src/java/org/apache/poi/util/StringUtil.java
@@ -335,6 +335,9 @@ public class StringUtil {
         return 1;
     }
     
+    /**
+     * @return the encoding we want to use (ISO-8859-1)
+     */
     public static String getPreferredEncoding() {
         return ENCODING;   
     }