diff --git a/api-ref/source/parameters.yaml b/api-ref/source/parameters.yaml
index 801089d08dfc..4bb36eeee185 100644
--- a/api-ref/source/parameters.yaml
+++ b/api-ref/source/parameters.yaml
@@ -5751,7 +5751,8 @@ server_trusted_image_certificates_resp:
   description: |
     A list of trusted certificate IDs, that were used during image signature
     verification to verify the signing certificate. The list is restricted
-    to a maximum of 50 IDs.
+    to a maximum of 50 IDs. The value is ``null`` if trusted certificate IDs
+    are not set.
   in: body
   required: true
   type: array
diff --git a/api-ref/source/servers.inc b/api-ref/source/servers.inc
index 493f575a69ea..df37a4a44ffa 100644
--- a/api-ref/source/servers.inc
+++ b/api-ref/source/servers.inc
@@ -372,6 +372,7 @@ Request
   - user_data: user_data
   - description: server_description
   - tags: server_tags_create
+  - trusted_image_certificates: server_trusted_image_certificates_create_req
   - os:scheduler_hints: os:scheduler_hints
   - os:scheduler_hints.build_near_host_ip: os:scheduler_hints_build_near_host_ip
   - os:scheduler_hints.cidr: os:scheduler_hints_cidr
@@ -381,7 +382,6 @@ Request
   - os:scheduler_hints.query: os:scheduler_hints_query
   - os:scheduler_hints.same_host: os:scheduler_hints_same_host
   - os:scheduler_hints.target_cell: os:scheduler_hints_target_cell
-  - trusted_image_certificates: server_trusted_image_certificates_create_req
 
 **Example Create Server**