diff --git a/services/statisticsservice.yaml b/services/statisticsservice.yaml
index b84ab5d..37f58ff 100644
--- a/services/statisticsservice.yaml
+++ b/services/statisticsservice.yaml
@@ -133,7 +133,8 @@ components:
           description: The uuid of the video call
           example: 123e4567-e89b-12d3-a456-556642440000
         tenantId:
-          type: string
+          type: integer
+          format: int64
           description: The id of the tenant
           example: 12345
 
diff --git a/src/main/java/de/caritas/cob/videoservice/api/service/statistics/event/StartVideoCallStatisticsEvent.java b/src/main/java/de/caritas/cob/videoservice/api/service/statistics/event/StartVideoCallStatisticsEvent.java
index 774947c..8489c88 100644
--- a/src/main/java/de/caritas/cob/videoservice/api/service/statistics/event/StartVideoCallStatisticsEvent.java
+++ b/src/main/java/de/caritas/cob/videoservice/api/service/statistics/event/StartVideoCallStatisticsEvent.java
@@ -46,6 +46,7 @@ private StartVideoCallStatisticsEventMessage createStartVideoCallStatisticsEvent
         .sessionId(sessionId)
         .videoCallUuid(videoCallUuid)
         .adviceSeekerId(adviceSeekerId)
+        .tenantId(tenantId)
         .timestamp(CustomOffsetDateTime.nowInUtc());
   }
 }