diff --git a/api/client-server/v1/joining.yaml b/api/client-server/v1/joining.yaml
index 20fdbd65..b6d2df18 100644
--- a/api/client-server/v1/joining.yaml
+++ b/api/client-server/v1/joining.yaml
@@ -65,4 +65,4 @@ paths:
       x-alias:
         canonical-link: "post-matrix-client-api-v1-rooms-roomid-join"
         aliases:
-          - /join/{roomId}
+          - /_matrix/client/api/v1/join/{roomId}