diff --git a/src/main/scala/devices/tilelink/Error.scala b/src/main/scala/devices/tilelink/Error.scala
index d9df000c..89c099df 100644
--- a/src/main/scala/devices/tilelink/Error.scala
+++ b/src/main/scala/devices/tilelink/Error.scala
@@ -26,7 +26,7 @@ abstract class DevNullDevice(params: ErrorParams, beatBytes: Int = 4)
     Seq(TLManagerParameters(
       address            = params.address,
       resources          = device.reg("mem"),
-      regionType         = RegionType.UNCACHED,
+      regionType         = RegionType.UNCACHEABLE,
       executable         = true,
       supportsAcquireT   = xfer,
       supportsAcquireB   = xfer,
diff --git a/src/main/scala/tilelink/Parameters.scala b/src/main/scala/tilelink/Parameters.scala
index 3ab22ee1..d6dcd257 100644
--- a/src/main/scala/tilelink/Parameters.scala
+++ b/src/main/scala/tilelink/Parameters.scala
@@ -40,7 +40,7 @@ case class TLManagerParameters(
   require (supportsAcquireB.contains(supportsAcquireT),  s"AcquireB($supportsAcquireB) < AcquireT($supportsAcquireT)")
 
   // Make sure that the regionType agrees with the capabilities
-  require (!supportsAcquireB || regionType >= RegionType.UNCACHED) // acquire -> uncached, tracked, cached
+  require (!supportsAcquireB || regionType >= RegionType.UNCACHEABLE) // acquire -> uncached, tracked, cached
   require (regionType <= RegionType.UNCACHED || supportsAcquireB)  // tracked, cached -> acquire
   require (regionType != RegionType.UNCACHED || supportsGet) // uncached -> supportsGet