diff --git a/pkg/operator/ceph/cluster/mgr/spec.go b/pkg/operator/ceph/cluster/mgr/spec.go
index 26f5c483b..d2167c81e 100644
--- a/pkg/operator/ceph/cluster/mgr/spec.go
+++ b/pkg/operator/ceph/cluster/mgr/spec.go
@@ -355,6 +355,7 @@ func (c *Cluster) cephMgrOrchestratorModuleEnvs() []v1.EnvVar {
 		{Name: "ROOK_OPERATOR_NAMESPACE", Value: operatorNamespace},
 		{Name: "ROOK_CEPH_CLUSTER_CRD_VERSION", Value: cephv1.Version},
 		{Name: "ROOK_CEPH_CLUSTER_CRD_NAME", Value: c.clusterInfo.NamespacedName().Name},
+		{Name: "CEPH_ARGS", Value: fmt.Sprintf("--mon-host $(ROOK_CEPH_MON_HOST) --keyring %s", keyring.VolumeMount().KeyringFilePath())},
 		k8sutil.PodIPEnvVar(podIPEnvVar),
 	}
 	return envVars
diff --git a/pkg/operator/ceph/cluster/mgr/spec_test.go b/pkg/operator/ceph/cluster/mgr/spec_test.go
index 84e5ab6a7..f9d00a5f3 100644
--- a/pkg/operator/ceph/cluster/mgr/spec_test.go
+++ b/pkg/operator/ceph/cluster/mgr/spec_test.go
@@ -70,6 +70,7 @@ func TestPodSpec(t *testing.T) {
 
 		podTemplate := test.NewPodTemplateSpecTester(t, &d.Spec.Template)
 		podTemplate.Spec().Containers().RequireAdditionalEnvVars(
+			"CEPH_ARGS",
 			"ROOK_OPERATOR_NAMESPACE", "ROOK_CEPH_CLUSTER_CRD_VERSION",
 			"ROOK_CEPH_CLUSTER_CRD_NAME")
 		podTemplate.RunFullSuite(config.MgrType, "a", AppName, "ns", "quay.io/ceph/ceph:myceph",