diff --git a/api/client-server/v2_alpha/sync.yaml b/api/client-server/v2_alpha/sync.yaml
index 6b7a1b2a..c502d926 100644
--- a/api/client-server/v2_alpha/sync.yaml
+++ b/api/client-server/v2_alpha/sync.yaml
@@ -5,7 +5,7 @@ info:
 host: localhost:8008
 schemes:
   - https
-basePath: /_matrix/client/api/v2_alpha
+basePath: /_matrix/client/v2_alpha
 consumes:
   - application/json
 produces: