diff --git a/swagger.yaml b/swagger.yaml
index b4a8129..3ebeb99 100644
--- a/swagger.yaml
+++ b/swagger.yaml
@@ -872,6 +872,12 @@ components:
           description: The number of videos in the playlist.
     SearchItem:
       type: object
+      discriminator:
+        propertyName: type
+        mapping:
+          stream: "#/components/schemas/StreamItem"
+          channel: "#/components/schemas/ChannelItem"
+          playlist: "#/components/schemas/PlaylistItem"
       oneOf:
         - $ref: "#/components/schemas/StreamItem"
         - $ref: "#/components/schemas/ChannelItem"