diff --git a/src/java/org/apache/poi/hssf/model/DrawingManager.java b/src/java/org/apache/poi/hssf/model/DrawingManager.java
index db9e53255..468f6b4f5 100644
--- a/src/java/org/apache/poi/hssf/model/DrawingManager.java
+++ b/src/java/org/apache/poi/hssf/model/DrawingManager.java
@@ -56,6 +56,7 @@ public class DrawingManager
     /**
      * Allocates new shape id for the new drawing group id.
      *
+     * @param drawingGroupId The drawing group id
      * @return a new shape id.
      */
     public int allocateShapeId(short drawingGroupId)