diff --git a/Firestore/src/V1/resources/firestore_rest_client_config.php b/Firestore/src/V1/resources/firestore_rest_client_config.php
index 4d8957f4639..984cef14a45 100644
--- a/Firestore/src/V1/resources/firestore_rest_client_config.php
+++ b/Firestore/src/V1/resources/firestore_rest_client_config.php
@@ -268,4 +268,5 @@
             ],
         ],
     ],
+    'numericEnums' => true,
 ];