diff --git a/api/services/ocean/aws/schemas/ocean-compute.yaml b/api/services/ocean/aws/schemas/ocean-compute.yaml
index e7c0f5c4..f22680b0 100644
--- a/api/services/ocean/aws/schemas/ocean-compute.yaml
+++ b/api/services/ocean/aws/schemas/ocean-compute.yaml
@@ -127,6 +127,13 @@ properties:
           Not required if the subnet is configured to “auto assign ipv6 addresses”.
         default: false
         example: false
+      primaryIpv6:
+        type: boolean
+        example: false
+        description: >
+          Enables assignment of a primary IPv6 address to the cluster.
+          This feature is only available when `associateIpv6Addresses` is explicitly set to `true`.
+          Additionally, the cluster must have been initially created as an EKS cluster in IPv6 mode.
       monitoring:
         type: boolean
         description: >