diff --git a/OpenAPI/TS28541_NrNrm.yaml b/OpenAPI/TS28541_NrNrm.yaml
index 452d843e9d3c9b476638c61b0cc6f20ebf183ff3..93a21737afee65c49ff9136438267f8b7c77e900 100755
--- a/OpenAPI/TS28541_NrNrm.yaml
+++ b/OpenAPI/TS28541_NrNrm.yaml
@@ -189,20 +189,11 @@ components:
           type: integer
           minimum: 0
           maximum: 100
-        maxNumberOfPreamblesSent:
-          type: string
-          enum:
-            - n3
-            - n4
-            - n5
-            - n6
-            - n7
-            - n8
-            - n10
-            - n20
-            - n50
-            - n100
-            - n200
+        NumberOfPreamblesSent:
+          type: integer
+          minimum: 0
+          maximum: 200
+
 
     UeAccDelayProbabilityDist:
       type: array