diff --git a/pageserver/src/http/openapi_spec.yml b/pageserver/src/http/openapi_spec.yml
index e799efcce3..41641c0f47 100644
--- a/pageserver/src/http/openapi_spec.yml
+++ b/pageserver/src/http/openapi_spec.yml
@@ -1079,6 +1079,7 @@ components:
         - last_record_lsn
         - disk_consistent_lsn
         - state
+        - min_readable_lsn
       properties:
         timeline_id:
           type: string