diff --git a/ansible/host_vars/macos-01.ms-eu-dublin.nimbus.prater.yml b/ansible/host_vars/macos-01.ms-eu-dublin.nimbus.prater.yml
index 0e00167..a2f8fda 100644
--- a/ansible/host_vars/macos-01.ms-eu-dublin.nimbus.prater.yml
+++ b/ansible/host_vars/macos-01.ms-eu-dublin.nimbus.prater.yml
@@ -9,3 +9,10 @@ beacon_node_max_peers: 200
 # HTTP RPC support is unstable
 beacon_node_web3_urls: ['http://goerli-02.he-eu-hel1.nimbus.geth.wg:{{ geth_authrpc_port }}']
 beacon_node_web3_jwt_secret: '{{ geth_authrpc_jwtsecret }}'
+
+# ERA Files Generation
+nimbus_era_files_timer_enabled: true
+nimbus_era_files_timer_frequency: 604800
+nimbus_era_files_timer_path: '/Users/nimbus/era'
+nimbus_era_files_db_path: '/Users/nimbus/beacon-node-{{ beacon_node_network }}-stable/data/db'
+nimbus_era_files_nclidb_path: '/Users/nimbus/beacon-node-{{ beacon_node_network }}-unstable/repo/build/ncli_db'
diff --git a/ansible/prater.yml b/ansible/prater.yml
index be44909..f5aed05 100644
--- a/ansible/prater.yml
+++ b/ansible/prater.yml
@@ -107,6 +107,7 @@
   hosts: nimbus-prater-macos
   roles:
     - { role: get-geth-api-urls, tags: [ get-geth-api-urls ] }
+    - { role: nimbus-era-files,  tags: [ nimbus-era-files ] }
   tasks:
     - include_role: name=infra-role-beacon-node-macos
       tags: [ beacon-node, infra-role-beacon-node-macos ]