diff --git a/changelogs/application_service/newsfragments/3675.clarification b/changelogs/application_service/newsfragments/3675.clarification
new file mode 100644
index 00000000..646d9ad6
--- /dev/null
+++ b/changelogs/application_service/newsfragments/3675.clarification
@@ -0,0 +1 @@
+Correct the documentation for the response value for `GET /_matrix/app/v1/thirdparty/protocol/{protocol}`.
\ No newline at end of file
diff --git a/data/api/application-service/protocols.yaml b/data/api/application-service/protocols.yaml
index 32ac2c3c..b1e3ce6e 100644
--- a/data/api/application-service/protocols.yaml
+++ b/data/api/application-service/protocols.yaml
@@ -48,7 +48,7 @@ paths:
         200:
           description: The protocol was found and metadata returned.
           schema:
-            $ref: definitions/protocol_metadata.yaml
+            $ref: definitions/protocol.yaml
         401:
           description: |-
             The homeserver has not supplied credentials to the application service.