Index: src/java/org/apache/fop/render/extensions/prepress/PageBoundaries.java
===================================================================
--- src/java/org/apache/fop/render/extensions/prepress/PageBoundaries.java	(revision 883607)
+++ src/java/org/apache/fop/render/extensions/prepress/PageBoundaries.java	(working copy)
@@ -215,7 +215,7 @@
             throw new IllegalArgumentException("Too many arguments");
         }
         return new Rectangle(originalRect.x - coords[3],
-                originalRect.y - coords[0],
+                originalRect.y - coords[2],
                 originalRect.width + coords[3] + coords[1],
                 originalRect.height + coords[0] + coords[2]);
     }