diff --git a/instances.go b/instances.go
index f6def2c62..d309d5f8c 100644
--- a/instances.go
+++ b/instances.go
@@ -100,8 +100,8 @@ type InstanceAlert struct {
 	NetworkIn     int   `json:"network_in"`
 	NetworkOut    int   `json:"network_out"`
 	TransferQuota int   `json:"transfer_quota"`
-	SystemAlerts  []int `json:"system_alerts,omitempty"`
-	UserAlerts    []int `json:"user_alerts,omitempty"`
+	SystemAlerts  []int `json:"system_alerts,omitzero"`
+	UserAlerts    []int `json:"user_alerts,omitzero"`
 }
 
 // InstanceBackup represents backup settings for an instance
@@ -230,8 +230,8 @@ type InstanceCreateOptions struct {
 
 // InstanceACLPAlertsOptions represents ACLP alerts options for instance creation and cloning.
 type InstanceACLPAlertsOptions struct {
-	SystemAlerts []int `json:"system_alerts,omitempty"`
-	UserAlerts   []int `json:"user_alerts,omitempty"`
+	SystemAlerts []int `json:"system_alerts,omitzero"`
+	UserAlerts   []int `json:"user_alerts,omitzero"`
 }
 
 // InstanceCreatePlacementGroupOptions represents the placement group
diff --git a/test/unit/instance_test.go b/test/unit/instance_test.go
index f4e12eca7..44a88b030 100644
--- a/test/unit/instance_test.go
+++ b/test/unit/instance_test.go
@@ -44,7 +44,7 @@ func TestInstances_List(t *testing.T) {
 	require.NotNil(t, linode.PlacementGroup.MigratingTo)
 	assert.Equal(t, 2468, *linode.PlacementGroup.MigratingTo)
 	assert.Equal(t, "linode/migrate", linode.MaintenancePolicy)
-	if len(linode.Alerts.SystemAlerts) > 2 {
+	if len(linode.Alerts.SystemAlerts) >= 2 {
 		assert.Equal(t, 123, linode.Alerts.SystemAlerts[0])
 		assert.Equal(t, 456, linode.Alerts.SystemAlerts[1])
 	}
@@ -84,7 +84,7 @@ func TestInstance_Get(t *testing.T) {
 	assert.Equal(t, "linode/migrate", instance.MaintenancePolicy)
 	require.NotNil(t, instance.PlacementGroup.MigratingTo)
 	assert.Equal(t, 2468, *instance.PlacementGroup.MigratingTo)
-	if len(instance.Alerts.SystemAlerts) > 2 {
+	if len(instance.Alerts.SystemAlerts) >= 2 {
 		assert.Equal(t, 123, instance.Alerts.SystemAlerts[0])
 		assert.Equal(t, 456, instance.Alerts.SystemAlerts[1])
 	}
@@ -206,7 +206,7 @@ func TestInstance_Create(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, "new-instance", instance.Label)
 	assert.Equal(t, "linode/migrate", instance.MaintenancePolicy)
-	if len(instance.Alerts.SystemAlerts) > 2 {
+	if len(instance.Alerts.SystemAlerts) >= 2 {
 		assert.Equal(t, 123, instance.Alerts.SystemAlerts[0])
 		assert.Equal(t, 456, instance.Alerts.SystemAlerts[1])
 	}
@@ -238,7 +238,7 @@ func TestInstance_Update(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, "updated-instance", instance.Label)
 	assert.Equal(t, "linode/power_off_on", instance.MaintenancePolicy)
-	if len(instance.Alerts.SystemAlerts) > 2 {
+	if len(instance.Alerts.SystemAlerts) >= 2 {
 		assert.Equal(t, 123, instance.Alerts.SystemAlerts[0])
 		assert.Equal(t, 456, instance.Alerts.SystemAlerts[1])
 	}
@@ -304,7 +304,7 @@ func TestInstance_Clone(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, "cloned-instance", instance.Label)
 	assert.Equal(t, "linode/migrate", instance.MaintenancePolicy)
-	if len(instance.Alerts.SystemAlerts) > 2 {
+	if len(instance.Alerts.SystemAlerts) >= 2 {
 		assert.Equal(t, 123, instance.Alerts.SystemAlerts[0])
 		assert.Equal(t, 456, instance.Alerts.SystemAlerts[1])
 	}