diff --git a/src/vnet/devices/af_packet/af_packet.api b/src/vnet/devices/af_packet/af_packet.api
index a1b30d5..d7637da 100644
--- a/src/vnet/devices/af_packet/af_packet.api
+++ b/src/vnet/devices/af_packet/af_packet.api
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-vl_api_version 1.0.0
+option version = "1.0.0";
 
 /** \brief Create host-interface
     @param client_index - opaque cookie to identify the sender
diff --git a/src/vnet/devices/netmap/netmap.api b/src/vnet/devices/netmap/netmap.api
index d2de033..a14753c 100644
--- a/src/vnet/devices/netmap/netmap.api
+++ b/src/vnet/devices/netmap/netmap.api
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-vl_api_version 1.0.0
+option version = "1.0.0";
 
 /** \brief Create netmap
     @param client_index - opaque cookie to identify the sender
diff --git a/src/vnet/devices/tap/tapv2.api b/src/vnet/devices/tap/tapv2.api
index 0d86edf..21c3ffb 100644
--- a/src/vnet/devices/tap/tapv2.api
+++ b/src/vnet/devices/tap/tapv2.api
@@ -19,7 +19,7 @@
     the Linux kernel TAP device driver
 */
 
-vl_api_version 1.1.0
+option version = "1.1.0";
 
 /** \brief Initialize a new tap interface with the given paramters
     @param client_index - opaque cookie to identify the sender
diff --git a/src/vnet/devices/virtio/vhost_user.api b/src/vnet/devices/virtio/vhost_user.api
index 6f21cb6..ccaa87c 100644
--- a/src/vnet/devices/virtio/vhost_user.api
+++ b/src/vnet/devices/virtio/vhost_user.api
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-vl_api_version 1.0.0
+option version = "1.0.0";
 
 /** \brief vhost-user interface create request
     @param client_index - opaque cookie to identify the sender