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-rw-r--r--src/main/scala/firrtl/Utils.scala2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/scala/firrtl/Utils.scala b/src/main/scala/firrtl/Utils.scala
index b9c642d9..d75c504a 100644
--- a/src/main/scala/firrtl/Utils.scala
+++ b/src/main/scala/firrtl/Utils.scala
@@ -298,7 +298,7 @@ object Utils extends LazyLogging {
def onExp(expr: Expression): Expression = {
expr map onExp match {
case e: WRef => ref = e.name
- case e: Reference => tokens += TargetToken.Ref(e.name)
+ case e: Reference => ref = e.name
case e: WSubField => tokens += TargetToken.Field(e.name)
case e: SubField => tokens += TargetToken.Field(e.name)
case e: WSubIndex => tokens += TargetToken.Index(e.value)