diff --git a/netbox/dcim/api/serializers.py b/netbox/dcim/api/serializers.py
index d458bc646..e37354d47 100644
--- a/netbox/dcim/api/serializers.py
+++ b/netbox/dcim/api/serializers.py
@@ -233,7 +233,7 @@ class WritableRackReservationSerializer(ValidatedModelSerializer):
 
     class Meta:
         model = RackReservation
-        fields = ['id', 'rack', 'units', 'user', 'description']
+        fields = ['id', 'rack', 'units', 'user', 'tenant', 'description']
 
 
 #