diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs
index 5bacd03b777ed5..e22ba85e2250de 100644
--- a/rust/kernel/error.rs
+++ b/rust/kernel/error.rs
@@ -62,7 +62,7 @@ impl Error {
     }
 
     /// Returns the kernel error code.
-    pub fn to_kernel_errno(&self) -> c_types::c_int {
+    pub fn to_kernel_errno(self) -> c_types::c_int {
         self.0
     }
 }