diff --git a/specs/ingestion/common/schemas/run.yml b/specs/ingestion/common/schemas/run.yml
index 997a2c6665..5e4db229f5 100644
--- a/specs/ingestion/common/schemas/run.yml
+++ b/specs/ingestion/common/schemas/run.yml
@@ -49,6 +49,9 @@ Run:
           type: integer
         receivedNbOfEvents:
           type: integer
+      required:
+        - expectedNbOfEvents
+        - receivedNbOfEvents
     outcome:
       $ref: '#/RunOutcome'
     failureThreshold: