diff --git a/src/java/org/apache/poi/hssf/record/RecalcIdRecord.java b/src/java/org/apache/poi/hssf/record/RecalcIdRecord.java
index e938552c64..1d972aa630 100644
--- a/src/java/org/apache/poi/hssf/record/RecalcIdRecord.java
+++ b/src/java/org/apache/poi/hssf/record/RecalcIdRecord.java
@@ -26,7 +26,9 @@ import org.apache.poi.util.LittleEndianOutput;
  *               recalculated. It's an optimization Excel uses to determine if it
  *               needs to  recalculate the spreadsheet when it's opened. So far, only
  *               the two engine ids <code>0x80 0x38 0x01 0x00</code>
- *               and <code>0x60 0x69 0x01 0x00</code> have been seen.<p/>
+ *               and <code>0x60 0x69 0x01 0x00</code> have been seen.
+ *               A value of <code>0x00</code> will cause Excel to recalculate
+ *               all formulas on the next load.<p/>
  * REFERENCE:  http://chicago.sourceforge.net/devel/docs/excel/biff8.html<p/>
  * @author Luc Girardin (luc dot girardin at macrofocus dot com)
  */