diff --git a/russh/src/negotiation.rs b/russh/src/negotiation.rs
index 78f14356..705bc5e5 100644
--- a/russh/src/negotiation.rs
+++ b/russh/src/negotiation.rs
@@ -79,7 +79,7 @@ impl Preferred {
             .filter(|n| {
                 available_host_keys
                     .iter()
-                    .any(|k| is_key_compatible_with_algo(k, *n))
+                    .any(|k| is_key_compatible_with_algo(k, n))
             })
             .cloned()
             .collect::<Vec<_>>()
@@ -450,7 +450,7 @@ pub fn write_kex(
                     server_config
                         .keys
                         .iter()
-                        .any(|k| is_key_compatible_with_algo(k, *algo))
+                        .any(|k| is_key_compatible_with_algo(k, algo))
                 })
                 .map(|x| x.to_string())
                 .collect(),
diff --git a/russh/src/server/kex.rs b/russh/src/server/kex.rs
index a4ea3b95..cfa1f078 100644
--- a/russh/src/server/kex.rs
+++ b/russh/src/server/kex.rs
@@ -36,7 +36,7 @@ impl KexInit {
             let Some(matching_key_index) = config
                 .keys
                 .iter()
-                .position(|key| is_key_compatible_with_algo(&key, &algo.key))
+                .position(|key| is_key_compatible_with_algo(key, &algo.key))
             else {
                 debug!("unknown key {:?}", algo.key);
                 return Err(Error::UnknownKey);