diff --git a/tildes/openapi_beta.yaml b/tildes/openapi_beta.yaml
index 27116c4..48ec7e7 100644
--- a/tildes/openapi_beta.yaml
+++ b/tildes/openapi_beta.yaml
@@ -345,6 +345,9 @@ components:
         - exemplary
         - collapsed
         - collapsed_individual
+        - by_op
+        - by_me
+        - new_comment
         - voted
         - bookmarked
         - depth
@@ -429,9 +432,11 @@ components:
       required:
         - message
       properties:
-        field:
-          type: string
         message:
           type: string
+        field:
+          type: string
+          nullable: true
         exception:
           type: string
+          nullable: true