diff --git a/deploy/kubernetes/metricbeat-kubernetes.yaml b/deploy/kubernetes/metricbeat-kubernetes.yaml
index ce685aa09753..22b014c85581 100644
--- a/deploy/kubernetes/metricbeat-kubernetes.yaml
+++ b/deploy/kubernetes/metricbeat-kubernetes.yaml
@@ -151,7 +151,7 @@ spec:
         args: [
           "-c", "/etc/metricbeat.yml",
           "-e",
-          "-system.hostfs=/hostfs",
+          "--system.hostfs=/hostfs",
         ]
         env:
         - name: ELASTICSEARCH_HOST