diff --git a/examples/custom_header.rs b/examples/custom_header.rs
index 3ea556a..8d30315 100644
--- a/examples/custom_header.rs
+++ b/examples/custom_header.rs
@@ -15,9 +15,7 @@ fn main() {
         Claims { sub: "b@b.com".to_owned(), company: "ACME".to_owned(), exp: 10000000000 };
     let key = b"secret";
 
-    let mut header = Header::default();
-    header.kid = Some("signing_key".to_owned());
-    header.alg = Algorithm::HS512;
+    let header = Header { kid: Some("signing_key".to_owned()), alg: Algorithm::HS512, ..Default::default() };
 
     let token = match encode(&header, &my_claims, &EncodingKey::from_secret(key)) {
         Ok(t) => t,
diff --git a/tests/hmac.rs b/tests/hmac.rs
index b2785ad..d2e1f5e 100644
--- a/tests/hmac.rs
+++ b/tests/hmac.rs
@@ -37,7 +37,7 @@ fn encode_with_custom_header() {
         company: "ACME".to_string(),
         exp: Utc::now().timestamp() + 10000,
     };
-    let mut header = Header { kid: Some("kid".to_string()), ..Default::default() };
+    let header = Header { kid: Some("kid".to_string()), ..Default::default() };
     let token = encode(&header, &my_claims, &EncodingKey::from_secret(b"secret")).unwrap();
     let token_data =
         decode::<Claims>(&token, &DecodingKey::from_secret(b"secret"), &Validation::default())