diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs
index 05cf869ac090..a56ba6309594 100644
--- a/rust/kernel/error.rs
+++ b/rust/kernel/error.rs
@@ -25,10 +25,8 @@ macro_rules! declare_err {
             #[doc = $doc]
             )*
             pub const $err: super::Error =
-                match super::Error::try_from_errno(-(crate::bindings::$err as i32)) {
-                    Some(err) => err,
-                    None => panic!("Invalid errno in `declare_err!`"),
-                };
+                super::Error::try_from_errno(-(crate::bindings::$err as i32))
+                    .expect("Invalid errno in `declare_err!`");
         };
     }