diff --git a/inventory/group_vars/datagrepper b/inventory/group_vars/datagrepper
index 3788ee6b20..2a0f9a0d8e 100644
--- a/inventory/group_vars/datagrepper
+++ b/inventory/group_vars/datagrepper
@@ -9,7 +9,10 @@ num_cpus: 2
 
 tcp_ports: [ 80, 443, 6996 ]
 # Neeed for rsync from log01 for logs.
-custom_rules: [ '-A INPUT -p tcp -m tcp -s 10.5.126.13 --dport 873 -j ACCEPT', '-A INPUT -p tcp -m tcp -s 192.168.1.59 --dport 873 -j ACCEPT' ]
+custom_rules: [
+    '-A INPUT -p tcp -m tcp -s 10.5.126.13 --dport 873 -j ACCEPT',
+    '-A INPUT -p tcp -m tcp -s 192.168.1.59 --dport 873 -j ACCEPT',
+]
 
 fas_client_groups: sysadmin-noc,sysadmin-datanommer,fi-apprentice