diff --git a/x-pack/plugins/infra/public/components/alerting/inventory/expression.tsx b/x-pack/plugins/infra/public/components/alerting/inventory/expression.tsx
index 3e5d6096815a9..f2c2c4c2f9aa2 100644
--- a/x-pack/plugins/infra/public/components/alerting/inventory/expression.tsx
+++ b/x-pack/plugins/infra/public/components/alerting/inventory/expression.tsx
@@ -116,7 +116,6 @@ export const Expressions: React.FC<Props> = props => {
       timeSize: timeSize ?? defaultExpression.timeSize,
       timeUnit: timeUnit ?? defaultExpression.timeUnit,
     });
-    exp.push(defaultExpression);
     setAlertParams('criteria', exp);
   }, [setAlertParams, alertParams.criteria, timeSize, timeUnit]);