diff --git a/signal-server-openapi.yaml b/signal-server-openapi.yaml
index 76839ba00..930187cb1 100644
--- a/signal-server-openapi.yaml
+++ b/signal-server-openapi.yaml
@@ -1258,7 +1258,7 @@ paths:
           content:
             application/json:
               schema:
-                type: object
+                $ref: "#/components/schemas/ExternalServiceCredentials"
         "403":
           description: Forbidden. The request had insufficient permissions to perform
             the requested action