diff --git a/junctions/src/main/scala/memserdes.scala b/junctions/src/main/scala/memserdes.scala
index 551b20b1..b66e5150 100644
--- a/junctions/src/main/scala/memserdes.scala
+++ b/junctions/src/main/scala/memserdes.scala
@@ -8,7 +8,6 @@ import cde.{Parameters, Field}
 case object MIFAddrBits extends Field[Int]
 case object MIFDataBits extends Field[Int]
 case object MIFTagBits extends Field[Int]
-case object MIFMasterTagBits extends Field[Int]
 case object MIFDataBeats extends Field[Int]
 
 trait HasMIFParameters {