diff --git a/poi/src/main/java/org/apache/poi/hssf/record/aggregates/RowRecordsAggregate.java b/poi/src/main/java/org/apache/poi/hssf/record/aggregates/RowRecordsAggregate.java
index deeeff34bb..d37c911c72 100644
--- a/poi/src/main/java/org/apache/poi/hssf/record/aggregates/RowRecordsAggregate.java
+++ b/poi/src/main/java/org/apache/poi/hssf/record/aggregates/RowRecordsAggregate.java
@@ -145,7 +145,7 @@ public final class RowRecordsAggregate extends RecordAggregate {
         _valuesAgg.removeAllCellsValuesForRow(rowIndex);
         RowRecord rr = _rowRecords.remove(rowIndex);
         if (rr == null) {
-            throw new RuntimeException("Invalid row index (" + key.intValue() + ")");
+            throw new RuntimeException("Invalid row index (" + rowIndex + ")");
         }
         if (row != rr) {
             _rowRecords.put(rowIndex, rr);