diff --git a/src/tlv.rs b/src/tlv.rs
index 372216c4..4d945199 100644
--- a/src/tlv.rs
+++ b/src/tlv.rs
@@ -69,7 +69,7 @@ pub fn take_len(data: &[u8]) -> Option<(usize, &[u8])> {
         let l2 = *data.get(1)?;
         let l3 = *data.get(2)?;
         let len = u16::from_be_bytes([l2, l3]) as usize;
-        Some((len as usize, &data[3..]))
+        Some((len, &data[3..]))
     }
 }
 
diff --git a/tests/command-response.rs b/tests/command-response.rs
index 6a8fcdbf..0d0ef982 100644
--- a/tests/command-response.rs
+++ b/tests/command-response.rs
@@ -294,7 +294,7 @@ impl Default for OutputMatcher {
 
 fn parse_hex(data: &str) -> Vec<u8> {
     let tmp: String = data.split_whitespace().collect();
-    hex::decode(&tmp).unwrap()
+    hex::decode(tmp).unwrap()
 }
 
 impl OutputMatcher {
@@ -417,7 +417,7 @@ impl IoCmd {
         println!("Command: {:x?}", input);
         let mut rep: heapless::Vec<u8, 1024> = heapless::Vec::new();
         let cmd: iso7816::Command<1024> = iso7816::Command::try_from(input).unwrap_or_else(|err| {
-            panic!("Bad command: {err:?}, for command: {}", hex::encode(&input))
+            panic!("Bad command: {err:?}, for command: {}", hex::encode(input))
         });
         let status: Status = card
             .handle(&cmd, &mut rep)