diff --git a/src/core/dm.rs b/src/core/dm.rs
index a93b2b17..3399192f 100644
--- a/src/core/dm.rs
+++ b/src/core/dm.rs
@@ -410,7 +410,7 @@ impl DM {
             ),
         };
 
-        let data_in = [id_in, &[b'\0']].concat();
+        let data_in = [id_in, b"\0"].concat();
 
         let mut hdr = options.to_ioctl_hdr(None, DmFlags::DM_UUID)?;
         Self::hdr_set_name(&mut hdr, old_name)?;