diff --git a/devices/src/virtio/net.rs b/devices/src/virtio/net.rs
index 502d354367..fbe84e54bb 100644
--- a/devices/src/virtio/net.rs
+++ b/devices/src/virtio/net.rs
@@ -142,12 +142,11 @@ pub enum NetError {
 #[derive(Serialize, Deserialize, PartialEq, Debug)]
 #[serde(untagged, deny_unknown_fields)]
 pub enum NetParametersMode {
-    TapName {
-        tap_name: String,
-    },
-    TapFd {
-        tap_fd: i32,
-    },
+    #[serde(rename_all = "kebab-case")]
+    TapName { tap_name: String },
+    #[serde(rename_all = "kebab-case")]
+    TapFd { tap_fd: i32 },
+    #[serde(rename_all = "kebab-case")]
     RawConfig {
         #[serde(default)]
         vhost_net: bool,
@@ -837,7 +836,7 @@ mod tests {
         let params = from_net_arg("");
         assert!(params.is_err());
 
-        let params = from_net_arg("tap_name=tap").unwrap();
+        let params = from_net_arg("tap-name=tap").unwrap();
         assert_eq!(
             params,
             NetParameters {
@@ -847,7 +846,7 @@ mod tests {
             }
         );
 
-        let params = from_net_arg("tap_fd=12").unwrap();
+        let params = from_net_arg("tap-fd=12").unwrap();
         assert_eq!(
             params,
             NetParameters {
@@ -856,7 +855,7 @@ mod tests {
         );
 
         let params = from_net_arg(
-            "host_ip=\"192.168.10.1\",netmask=\"255.255.255.0\",mac=\"3d:70:eb:61:1a:91\"",
+            "host-ip=\"192.168.10.1\",netmask=\"255.255.255.0\",mac=\"3d:70:eb:61:1a:91\"",
         )
         .unwrap();
         assert_eq!(
@@ -872,8 +871,8 @@ mod tests {
         );
 
         let params = from_net_arg(
-            "vhost_net=true,\
-                host_ip=\"192.168.10.1\",\
+            "vhost-net=true,\
+                host-ip=\"192.168.10.1\",\
                 netmask=\"255.255.255.0\",\
                 mac=\"3d:70:eb:61:1a:91\"",
         )
@@ -892,18 +891,18 @@ mod tests {
 
         // mixed configs
         assert!(from_net_arg(
-            "tap_name=tap,\
-            vhost_net=true,\
-            host_ip=\"192.168.10.1\",\
+            "tap-name=tap,\
+            vhost-net=true,\
+            host-ip=\"192.168.10.1\",\
             netmask=\"255.255.255.0\",\
             mac=\"3d:70:eb:61:1a:91\"",
         )
         .is_err());
 
         // missing netmask
-        assert!(from_net_arg("host_ip=\"192.168.10.1\",mac=\"3d:70:eb:61:1a:91\"").is_err());
+        assert!(from_net_arg("host-ip=\"192.168.10.1\",mac=\"3d:70:eb:61:1a:91\"").is_err());
 
         // invalid parameter
-        assert!(from_net_arg("tap_name=tap,foomatic=true").is_err());
+        assert!(from_net_arg("tap-name=tap,foomatic=true").is_err());
     }
 }
diff --git a/src/crosvm/cmdline.rs b/src/crosvm/cmdline.rs
index c3719a38f5..c237a96e3b 100644
--- a/src/crosvm/cmdline.rs
+++ b/src/crosvm/cmdline.rs
@@ -1017,10 +1017,10 @@ pub struct RunCommand {
     /// comma separated key=value pairs for setting
     /// up a vhost-user net device
     /// Possible key values:
-    ///     tap_name=STRING - name of a configured persistent TAP
+    ///     tap-name=STRING - name of a configured persistent TAP
     ///        interface to use for networking.
-    ///     tap_fd=INT - File descriptor for configured tap device.
-    ///     host_ip=STRING - IP address to assign to
+    ///     tap-fd=INT - File descriptor for configured tap device.
+    ///     host-ip=STRING - IP address to assign to
     ///         host tap interface.
     ///     netmask=STRING - Netmask for VM subnet.
     ///     mac=STRING - MAC address for VM.