diff --git a/devices/src/virtio/video/protocol.rs b/devices/src/virtio/video/protocol.rs
index fb574a4f0a..ec03f8c128 100644
--- a/devices/src/virtio/video/protocol.rs
+++ b/devices/src/virtio/video/protocol.rs
@@ -4,7 +4,7 @@
 
 //! This file was generated by the following commands and modified manually.
 //!
-//! ```
+//! ```shell
 //! $ bindgen virtio_video.h              \
 //!     --whitelist-type "virtio_video.*" \
 //!     --whitelist-var "VIRTIO_VIDEO_.*" \