diff --git a/linux/meta/prometheus.yml b/linux/meta/prometheus.yml
index fac53c2..9d29c14 100644
--- a/linux/meta/prometheus.yml
+++ b/linux/meta/prometheus.yml
@@ -338,7 +338,7 @@
         description: "The {{ $labels.bond }} bond interface slave {{ $labels.interface }} on the {{ $labels.host }} node is down."
     BondInterfaceSlaveDownMajor:
       if: >-
-        sum(bond_slave_status) by (bond,host) <= on (bond,host) 0.5 * count(bond_slave_status)
+        sum(bond_slave_status) by (bond,host) <= 0.5 * count(bond_slave_status) by (bond,host)
       labels:
         severity: major
         service: system