diff --git a/public/openapi/components/schemas/PostObject.yaml b/public/openapi/components/schemas/PostObject.yaml
index 1d8f2f5b67..54dcc248c2 100644
--- a/public/openapi/components/schemas/PostObject.yaml
+++ b/public/openapi/components/schemas/PostObject.yaml
@@ -139,6 +139,8 @@ PostObject:
               url:
                 type: string
                 description: Relative path to the topic thumbnail
+        teaser:
+          $ref: ../../components/schemas/TeaserObject.yaml#/TeaserObject
       required:
         - uid
         - tid