diff --git a/public/openapi/write/posts/pid.yaml b/public/openapi/write/posts/pid.yaml
index 45dba85c74..2203992b52 100644
--- a/public/openapi/write/posts/pid.yaml
+++ b/public/openapi/write/posts/pid.yaml
@@ -22,53 +22,65 @@ get:
               status:
                 $ref: ../../components/schemas/Status.yaml#/Status
               response:
-                type: object
-                properties:
-                  pid:
-                    type: number
-                  uid:
-                    type: number
-                    description: A user identifier
-                  tid:
-                    type: number
-                    description: A topic identifier
-                  content:
-                    type: string
-                  timestamp:
-                    type: number
-                  flagId:
-                    type: number
-                  deleted:
-                    type: number
-                  upvotes:
-                    type: number
-                  downvotes:
-                    type: number
-                  deleterUid:
-                    type: number
-                  edited:
-                    type: number
-                  replies:
-                    type: number
-                  bookmarks:
-                    type: number
-                  votes:
-                    type: number
-                  timestampISO:
-                    type: string
-                    description: An ISO 8601 formatted date string (complementing `timestamp`)
-                  editedISO:
-                    type: string
-                    description: An ISO 8601 formatted date string (complementing `timestamp`)
-                  upvoted:
-                    type: boolean
-                  downvoted:
-                    type: boolean
-                  attachments:
-                    type: array
-                    items:
-                      type: string
-                      description: A sha256 hash of the attachment (tied to the corresponding entry in the database)
+                allOf:
+                  - type: object
+                    properties:
+                      pid:
+                        type: number
+                      uid:
+                        type: number
+                        description: A user identifier
+                      tid:
+                        type: number
+                        description: A topic identifier
+                      content:
+                        type: string
+                      timestamp:
+                        type: number
+                      flagId:
+                        type: number
+                      deleted:
+                        type: number
+                      upvotes:
+                        type: number
+                      downvotes:
+                        type: number
+                      deleterUid:
+                        type: number
+                      edited:
+                        type: number
+                      replies:
+                        type: number
+                      bookmarks:
+                        type: number
+                      votes:
+                        type: number
+                      timestampISO:
+                        type: string
+                        description: An ISO 8601 formatted date string (complementing `timestamp`)
+                      editedISO:
+                        type: string
+                        description: An ISO 8601 formatted date string (complementing `timestamp`)
+                      upvoted:
+                        type: boolean
+                      downvoted:
+                        type: boolean
+                      attachments:
+                        type: array
+                        items:
+                          type: string
+                          description: A sha256 hash of the attachment (tied to the corresponding entry in the database)
+                  - type: object
+                    description: Optional properties that may or may not be present (except for `pid`, which is always present, and is only here as a hack to pass validation)
+                    properties:
+                      pid:
+                        type: number
+                        description: A post identifier
+                      sourceContent:
+                        type: string
+                        description: The markdown equivalent of a remote post content, as received (or fetched) from the remote site.
+                    required:
+                      - pid
 put:
   tags:
     - posts
diff --git a/test/controllers.js b/test/controllers.js
index f4e2d850f5..d9e9f3e2a8 100644
--- a/test/controllers.js
+++ b/test/controllers.js
@@ -1915,12 +1915,12 @@ describe('Controllers', () => {
 			});
 
 			it('should deny access if view:users privilege is not enabled for guests', async () => {
-				await privileges.global.rescind(['groups:view:users'], 'guests');
+				await privileges.global.rescind(['groups:view:users'], 'fediverse');
 
 				const { response } = await request.get(`${nconf.get('url')}/.well-known/webfinger?resource=acct:${username}@${nconf.get('url_parsed').host}`);
 				assert.strictEqual(response.statusCode, 400);
 
-				await privileges.global.give(['groups:view:users'], 'guests');
+				await privileges.global.give(['groups:view:users'], 'fediverse');
 			});
 
 			it('should respond appropriately if the user requested does not exist locally', async () => {