diff --git a/OpenAPI/TS28312_IntentNrm.yaml b/OpenAPI/TS28312_IntentNrm.yaml
index dc5c4d4e48ca9d7641779bc7bd27ebe49288c5ec..c1aa692c55ffcb2ad0b6fe896ecbc7f48d66e66b 100644
--- a/OpenAPI/TS28312_IntentNrm.yaml
+++ b/OpenAPI/TS28312_IntentNrm.yaml
@@ -64,10 +64,7 @@ components:
             maximum: 100
             description: It expresses the priority of the stated intent within a MnS consumer.   
           intentPreemptionCapability:
-            type: string
-            enum:
-              - TRUE
-              - FALSE
+            type: boolean
           observationPeriod:
             type: integer
             description: >-