diff --git a/src/main/scala/coreplex/RocketCoreplex.scala b/src/main/scala/coreplex/RocketCoreplex.scala
index d1e7fd0c..feee369e 100644
--- a/src/main/scala/coreplex/RocketCoreplex.scala
+++ b/src/main/scala/coreplex/RocketCoreplex.scala
@@ -45,19 +45,19 @@ trait HasRocketTiles extends HasSystemBus
     val wrapper = crossing match {
       case SynchronousCrossing(params) => {
         val wrapper = LazyModule(new SyncRocketTile(tp, i)(pWithExtra))
-        sbus.fromSyncTiles(params, tp.externalBuffers, tp.name) :=* wrapper.masterNode
+        sbus.fromSyncTiles(params, tp.externalMasterBuffers, tp.name) :=* wrapper.masterNode
         wrapper.slaveNode :*= pbus.bufferToSlaves
         wrapper
       }
       case AsynchronousCrossing(depth, sync) => {
         val wrapper = LazyModule(new AsyncRocketTile(tp, i)(pWithExtra))
-        sbus.fromAsyncTiles(depth, sync, tp.externalBuffers, tp.name) :=* wrapper.masterNode
+        sbus.fromAsyncTiles(depth, sync, tp.externalMasterBuffers, tp.name) :=* wrapper.masterNode
         wrapper.slaveNode :*= pbus.toAsyncSlaves(sync, tp.name)
         wrapper
       }
       case RationalCrossing(direction) => {
         val wrapper = LazyModule(new RationalRocketTile(tp, i)(pWithExtra))
-        sbus.fromRationalTiles(direction, tp.externalBuffers, tp.name) :=* wrapper.masterNode
+        sbus.fromRationalTiles(direction, tp.externalMasterBuffers, tp.name) :=* wrapper.masterNode
         wrapper.slaveNode :*= pbus.toRationalSlaves(tp.name)
         wrapper
       }
diff --git a/src/main/scala/tile/RocketTile.scala b/src/main/scala/tile/RocketTile.scala
index 4b2ff7ca..ea27e584 100644
--- a/src/main/scala/tile/RocketTile.scala
+++ b/src/main/scala/tile/RocketTile.scala
@@ -20,7 +20,7 @@ case class RocketTileParams(
     dataScratchpadBytes: Int = 0,
     boundaryBuffers: Boolean = false,
     name: Option[String] = Some("tile"),
-    externalBuffers: Int = 0) extends TileParams {
+    externalMasterBuffers: Int = 0) extends TileParams {
   require(icache.isDefined)
   require(dcache.isDefined)
 }