diff --git a/cumulus/src/plugins/alpha/block/block.py b/cumulus/src/plugins/alpha/block/block.py
index 2c02da74..eaa4a974 100644
--- a/cumulus/src/plugins/alpha/block/block.py
+++ b/cumulus/src/plugins/alpha/block/block.py
@@ -592,7 +592,7 @@ class Block ( object ):
         with UpdateSession():
             instance   = self.rgetCoreInstance( ipath )
             macro      = Macro.wrap( instance.getMasterCell()
-                                   , self.conf.routingGauge.getName(), 2, 2 )
+                                   , self.conf.routingGauge.getName(), 3, 2 )
             instanceAb = instance.getMasterCell().getAbutmentBox()
             coreTransf = self.conf.icore.getTransformation()
             if self.conf.isCoreBlock: