diff --git a/port_joseph/pirates/mbgrave b/port_joseph/pirates/mbgrave
index c91e3b169..0e7fc5ffd 100644
--- a/port_joseph/pirates/mbgrave
+++ b/port_joseph/pirates/mbgrave
@@ -26,6 +26,9 @@ arch blocked
 y 3
 end
 arch blocked
+y 4
+end
+arch blocked
 y 5
 end
 arch blocked