diff --git a/docs/schema.yml b/docs/schema.yml
index e5daaa253..21ef3c641 100644
--- a/docs/schema.yml
+++ b/docs/schema.yml
@@ -767,6 +767,10 @@ components:
               type: array
               items:
                 $ref: "#/components/schemas/SimpleRecording"
+            collections:
+              type: array
+              items:
+                $ref: "specs/collections/schema.yml#/SimpleCollection"
     ReleaseGroup:
       allOf:
         - $ref: "#/components/schemas/SimpleReleaseGroup"