diff --git a/src/system/challenge-data.ts b/src/system/challenge-data.ts
index 394d63867be..0f98ab514ea 100644
--- a/src/system/challenge-data.ts
+++ b/src/system/challenge-data.ts
@@ -4,11 +4,13 @@ export default class ChallengeData {
   public id: integer;
   public value: integer;
   public severity: integer;
+  public rand: integer;
 
   constructor(source: Challenge | any) {
     this.id = source.id;
     this.value = source.value;
     this.severity = source.severity;
+    this.rand = source.rand;
   }
 
   toChallenge(): Challenge {