diff --git a/internal/util-logging/src/main/scala/sbt/internal/util/ManagedLogger.scala b/internal/util-logging/src/main/scala/sbt/internal/util/ManagedLogger.scala
index d4cef3fe0..3add4cd04 100644
--- a/internal/util-logging/src/main/scala/sbt/internal/util/ManagedLogger.scala
+++ b/internal/util-logging/src/main/scala/sbt/internal/util/ManagedLogger.scala
@@ -25,9 +25,11 @@ class ManagedLogger(
     )
   }
 
+  private val SuccessEventTag = scala.reflect.runtime.universe.typeTag[SuccessEvent]
   // send special event for success since it's not a real log level
   override def success(message: => String): Unit = {
-    infoEvent[SuccessEvent](SuccessEvent(message))
+    infoEvent[SuccessEvent](SuccessEvent(message))(implicitly[JsonFormat[SuccessEvent]],
+                                                   SuccessEventTag)
   }
 
   def registerStringCodec[A: ShowLines: TypeTag]: Unit = {