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-rw-r--r--src/main/scala/firrtl/options/StageAnnotations.scala2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/scala/firrtl/options/StageAnnotations.scala b/src/main/scala/firrtl/options/StageAnnotations.scala
index 84168975..e2835e16 100644
--- a/src/main/scala/firrtl/options/StageAnnotations.scala
+++ b/src/main/scala/firrtl/options/StageAnnotations.scala
@@ -10,7 +10,7 @@ import java.io.File
import scopt.OptionParser
-sealed trait StageOption { this: Annotation => }
+sealed trait StageOption extends Unserializable { this: Annotation => }
/** An annotation that should not be serialized automatically [[phases.WriteOutputAnnotations WriteOutputAnnotations]].
* This usually means that this is an annotation that is used only internally to a [[Stage]].