diff --git a/main-command/src/main/scala/sbt/MainControl.scala b/main-command/src/main/scala/sbt/MainControl.scala
index a67b2b662..4995be5bf 100644
--- a/main-command/src/main/scala/sbt/MainControl.scala
+++ b/main-command/src/main/scala/sbt/MainControl.scala
@@ -21,7 +21,7 @@ final case class Reboot(
   def arguments = argsList.toArray
 }
 
-case object Reload extends Exception
+case object Reload extends Exception(null, null, false, false)
 
 final case class ApplicationID(
     groupID: String,