diff --git a/app/model/transcoder/JobStatus.scala b/app/model/transcoder/JobStatus.scala
index c983a0a01..af0314dec 100644
--- a/app/model/transcoder/JobStatus.scala
+++ b/app/model/transcoder/JobStatus.scala
@@ -2,10 +2,11 @@ package model.transcoder
 
 import ai.x.play.json.Encoders.encoder
 import ai.x.play.json.Jsonx
+import play.api.libs.json.Format
 
 case class JobStatus(key: String, status: String, statusDetail: Option[String])
 
 object JobStatus {
-  implicit val jobStatusFormat = Jsonx.formatCaseClass[JobStatus]
+  implicit val jobStatusFormat: Format[JobStatus] = Jsonx.formatCaseClass[JobStatus]
 }