diff --git a/monero-harness/src/lib.rs b/monero-harness/src/lib.rs
index 0824a44d..5f69cd43 100644
--- a/monero-harness/src/lib.rs
+++ b/monero-harness/src/lib.rs
@@ -56,7 +56,7 @@ impl<'c> Monero {
     /// miner wallet container name is: `miner`
     pub async fn new(
         cli: &'c Cli,
-        additional_wallets: Vec<String>,
+        additional_wallets: Vec<&'static str>,
     ) -> Result<(Self, Vec<Container<'c, Cli, image::Monero>>)> {
         let prefix = format!("{}_", random_prefix());
         let monerod_name = format!("{}{}", prefix, MONEROD_DAEMON_CONTAINER_NAME);
diff --git a/monero-harness/tests/wallet.rs b/monero-harness/tests/wallet.rs
index d2e97cb4..df26d348 100644
--- a/monero-harness/tests/wallet.rs
+++ b/monero-harness/tests/wallet.rs
@@ -17,9 +17,7 @@ async fn fund_transfer_and_check_tx_key() {
     let send_to_bob = 5_000_000_000;
 
     let tc = Cli::default();
-    let (monero, _containers) = Monero::new(&tc, vec!["alice".to_string(), "bob".to_string()])
-        .await
-        .unwrap();
+    let (monero, _containers) = Monero::new(&tc, vec!["alice", "bob"]).await.unwrap();
     let alice_wallet = monero.wallet("alice").unwrap();
     let bob_wallet = monero.wallet("bob").unwrap();
 
diff --git a/swap/tests/harness/mod.rs b/swap/tests/harness/mod.rs
index 4888a4ce..58c77ea1 100644
--- a/swap/tests/harness/mod.rs
+++ b/swap/tests/harness/mod.rs
@@ -195,12 +195,10 @@ async fn init_monero_container(
     Monero,
     Vec<Container<'_, Cli, monero_harness::image::Monero>>,
 ) {
-    let (monero, monerods) = Monero::new(&cli, vec![
-        MONERO_WALLET_NAME_ALICE.to_owned(),
-        MONERO_WALLET_NAME_BOB.to_owned(),
-    ])
-    .await
-    .unwrap();
+    let (monero, monerods) =
+        Monero::new(&cli, vec![MONERO_WALLET_NAME_ALICE, MONERO_WALLET_NAME_BOB])
+            .await
+            .unwrap();
 
     (monero, monerods)
 }