diff --git a/object_store/src/aws/dynamo.rs b/object_store/src/aws/dynamo.rs
index bb4327d8e537..fd5f33d65088 100644
--- a/object_store/src/aws/dynamo.rs
+++ b/object_store/src/aws/dynamo.rs
@@ -62,7 +62,7 @@ pub(crate) async fn copy_if_not_exists(
     let mut previous_lease = None;
 
     loop {
-        match try_lock(&client, table_name, to.as_ref(), previous_lease.as_ref()).await? {
+        match try_lock(client, table_name, to.as_ref(), previous_lease.as_ref()).await? {
             TryLockResult::Ok(lease) => {
                 let fut = client.copy_request(from, to, None);
                 return match tokio::time::timeout_at(lease.timeout().into(), fut).await {
@@ -133,7 +133,7 @@ async fn try_lock(
 
     let ttl = (Utc::now() + LEASE_TTL).timestamp();
     let items = [
-        ("key", AttributeValue::String(&key)),
+        ("key", AttributeValue::String(key)),
         ("generation", AttributeValue::Number(next_gen)),
         ("ttl", AttributeValue::Number(ttl as _)),
     ];
@@ -154,7 +154,7 @@ async fn try_lock(
     let acquire = Instant::now();
 
     let builder = match &s3.config.endpoint {
-        None => s3.client.post(&format!(
+        None => s3.client.post(format!(
             "https://dynamodb.{}.amazonaws.com",
             s3.config.region
         )),