diff --git a/OpenAPI/TS28538_EdgeNrm.yaml b/OpenAPI/TS28538_EdgeNrm.yaml
index a87137ee007f16a000630a3bff41ddd971a645a6..a6ebd076d49169d4f1b9a1ce476cdd64309cdc39 100644
--- a/OpenAPI/TS28538_EdgeNrm.yaml
+++ b/OpenAPI/TS28538_EdgeNrm.yaml
@@ -121,6 +121,7 @@ components:
       enum:
         - ENABLED
         - DISABLED
+        - OVERLOAD_WARNING
     ResourceReservationRequirement:
       type: object
       properties: