diff --git a/apis/management.cattle.io/v3/rke_types.go b/apis/management.cattle.io/v3/rke_types.go
index 4f7e034f..180bcf30 100644
--- a/apis/management.cattle.io/v3/rke_types.go
+++ b/apis/management.cattle.io/v3/rke_types.go
@@ -23,7 +23,7 @@ type RancherKubernetesEngineConfig struct {
 
 type RKEConfigNode struct {
 	// Name of the host provisioned via docker machine
-	MachineName string `yaml:"machine_name" json:"machineName, omitempty"`
+	MachineName string `yaml:"machine_name,omitempty" json:"machineName,omitempty"`
 	// IP or FQDN that is fully resolvable and used for SSH communication
 	Address string `yaml:"address" json:"address,omitempty"`
 	// Optional - Internal address that will be used for components communication