diff --git a/apis/management.cattle.io/v3/rke_types.go b/apis/management.cattle.io/v3/rke_types.go
index 45ccc8ee..680ab570 100644
--- a/apis/management.cattle.io/v3/rke_types.go
+++ b/apis/management.cattle.io/v3/rke_types.go
@@ -355,7 +355,7 @@ type NetworkConfig struct {
 	// Plugin options to configure network properties
 	Options map[string]string `yaml:"options" json:"options,omitempty"`
 	// Set MTU for CNI provider
-	MTU string `yaml:"mtu" json:"mtu,omitempty"`
+	MTU int `yaml:"mtu" json:"mtu,omitempty"`
 	// CalicoNetworkProvider
 	CalicoNetworkProvider *CalicoNetworkProvider `yaml:"calico_network_provider,omitempty" json:"calicoNetworkProvider,omitempty"`
 	// CanalNetworkProvider
diff --git a/client/management/v3/zz_generated_network_config.go b/client/management/v3/zz_generated_network_config.go
index d3d9945f..fd264649 100644
--- a/client/management/v3/zz_generated_network_config.go
+++ b/client/management/v3/zz_generated_network_config.go
@@ -16,7 +16,7 @@ type NetworkConfig struct {
 	CalicoNetworkProvider  *CalicoNetworkProvider  `json:"calicoNetworkProvider,omitempty" yaml:"calicoNetworkProvider,omitempty"`
 	CanalNetworkProvider   *CanalNetworkProvider   `json:"canalNetworkProvider,omitempty" yaml:"canalNetworkProvider,omitempty"`
 	FlannelNetworkProvider *FlannelNetworkProvider `json:"flannelNetworkProvider,omitempty" yaml:"flannelNetworkProvider,omitempty"`
-	MTU                    string                  `json:"mtu,omitempty" yaml:"mtu,omitempty"`
+	MTU                    int64                   `json:"mtu,omitempty" yaml:"mtu,omitempty"`
 	NodeSelector           map[string]string       `json:"nodeSelector,omitempty" yaml:"nodeSelector,omitempty"`
 	Options                map[string]string       `json:"options,omitempty" yaml:"options,omitempty"`
 	Plugin                 string                  `json:"plugin,omitempty" yaml:"plugin,omitempty"`