diff --git a/apidef/oas/schema/x-tyk-api-gateway.json b/apidef/oas/schema/x-tyk-api-gateway.json
index 77dca6c608d..031cc88bae5 100644
--- a/apidef/oas/schema/x-tyk-api-gateway.json
+++ b/apidef/oas/schema/x-tyk-api-gateway.json
@@ -2128,7 +2128,6 @@
           },
           "required": [
             "clientId",
-            "clientSecret",
             "tokenUrl",
             "username",
             "password"