diff --git a/devtools/generate_batch_config.py b/devtools/generate_batch_config.py
index b4f36802b1..5f2ee55b5d 100755
--- a/devtools/generate_batch_config.py
+++ b/devtools/generate_batch_config.py
@@ -70,13 +70,14 @@ def to_config(
             "instances": [
                 {
                     "policy": {
+                        "machineType": "n2-standard-8",
                         "disks": [
                             {
                                 "newDisk": {"sizeGb": 375, "type": "local-ssd"},
                                 "deviceName": "local-ssd",
                             }
-                        ]
-                    }
+                        ],
+                    },
                 }
             ],
         },