diff --git a/packages/getMyPrescriptions/src/getMyPrescriptions.ts b/packages/getMyPrescriptions/src/getMyPrescriptions.ts
index be6ec23cd..24f4025a0 100644
--- a/packages/getMyPrescriptions/src/getMyPrescriptions.ts
+++ b/packages/getMyPrescriptions/src/getMyPrescriptions.ts
@@ -44,7 +44,7 @@ const servicesCache: ServicesCache = {}
 const LAMBDA_TIMEOUT_MS = 10_000
 const SPINE_TIMEOUT_MS = 9_000
 const SERVICE_SEARCH_TIMEOUT_MS = 5_000
-export const DELEGATED_ACCESS_HDR = "delegatedaccess"
+export const DELEGATED_ACCESS_HDR = "x-nhsd-delegated-access"
 export const DELEGATED_ACCESS_SUB_HDR = "x-nhsd-subject-nhs-number"
 
 export type GetMyPrescriptionsEvent = {
diff --git a/packages/specification/prescriptions-for-patients.yaml b/packages/specification/prescriptions-for-patients.yaml
index e2b36da6d..5dcb615ac 100644
--- a/packages/specification/prescriptions-for-patients.yaml
+++ b/packages/specification/prescriptions-for-patients.yaml
@@ -416,6 +416,7 @@ components:
 x-nhsd-apim:
   temporary: false
   monitoring: true
+  delegatedaccess: true
   access:
     - title: User Restricted
       grants: