diff --git a/src/command/bc125at/firmware_version.rs b/src/command/bc125at/firmware_version.rs
index c2c1b2d..2507378 100644
--- a/src/command/bc125at/firmware_version.rs
+++ b/src/command/bc125at/firmware_version.rs
@@ -5,10 +5,8 @@ use tokio_util::bytes::Bytes;
 use crate::command::{Response, command};
 
 #[derive(Debug, thiserror::Error)]
-pub enum FirmwareVersionError {
-    #[error("invalid UTF-8 bytes")]
-    Utf8Error(#[from] Utf8Error),
-}
+#[error("invalid UTF-8 bytes")]
+pub struct FirmwareVersionError(#[from] pub Utf8Error);
 
 #[derive(Debug)]
 pub struct FirmwareVersion(pub String);
diff --git a/src/command/bc125at/mod.rs b/src/command/bc125at/mod.rs
index 4bee70e..835aca9 100644
--- a/src/command/bc125at/mod.rs
+++ b/src/command/bc125at/mod.rs
@@ -3,7 +3,7 @@ mod program_mode;
 mod squelch;
 mod volume;
 
-pub use firmware_version::GetFirmwareVersion;
+pub use firmware_version::{FirmwareVersion, FirmwareVersionError, GetFirmwareVersion};
 pub use program_mode::{EnterProgramMode, ExitProgramMode};
 pub use squelch::{GetSquelchLevel, SetSquelchLevel, SquelchLevel, SquelchLevelError};
 pub use volume::{GetVolumeLevel, SetVolumeLevel, VolumeLevel, VolumeLevelError};