diff --git a/data/api/server-server/invites-v1.yaml b/data/api/server-server/invites-v1.yaml
index c8e411f6..38f8edc0 100644
--- a/data/api/server-server/invites-v1.yaml
+++ b/data/api/server-server/invites-v1.yaml
@@ -91,6 +91,7 @@ paths:
                             precise event formats.
                           items:
                             type: object
+                            title: PDU
                             properties: {}
                             description: |-
                               Note that events have a different format depending on the room
diff --git a/data/api/server-server/invites-v2.yaml b/data/api/server-server/invites-v2.yaml
index fd6790f5..dc68f2e8 100644
--- a/data/api/server-server/invites-v2.yaml
+++ b/data/api/server-server/invites-v2.yaml
@@ -92,6 +92,7 @@ paths:
                     precise event formats.
                   items:
                     type: object
+                    title: PDU
                     properties: {}
                     description: |-
                       Note that events have a different format depending on the room