diff --git a/roles/keepalived/defaults/main.yml b/roles/keepalived/defaults/main.yml
index 4aeec8c..52c186a 100644
--- a/roles/keepalived/defaults/main.yml
+++ b/roles/keepalived/defaults/main.yml
@@ -4,5 +4,6 @@ keepalived__virtual_routes: {}
 keepalived__notify_master: []
 keepalived__notify_backup: []
 keepalived__notify_fault: []
+keepalived__main: false
 keepalived__max_auto_priority: -1
 ...
diff --git a/roles/keepalived/templates/keepalived.conf.j2 b/roles/keepalived/templates/keepalived.conf.j2
index dabd0e2..4df9973 100644
--- a/roles/keepalived/templates/keepalived.conf.j2
+++ b/roles/keepalived/templates/keepalived.conf.j2
@@ -44,7 +44,7 @@ vrrp_instance instance_v4 {
     virtual_router_id {{ keepalived__virtual_router_id | int }}
     interface {{ keepalived__interface }}
     state BACKUP
-    priority 250
+    priority {{ keepalived__main | ternary(250, 150) }}
     nopreempt
     advert_int 1
     accept
@@ -79,7 +79,7 @@ vrrp_instance instance_v6 {
     virtual_router_id {{ keepalived__virtual_router_id | int }}
     interface {{ keepalived__interface }}
     state BACKUP
-    priority 250
+    priority {{ keepalived__main | ternary(250, 150) }}
     nopreempt
     advert_int 1
     accept