diff --git a/gui/src/installer/step/bitcoind.rs b/gui/src/installer/step/bitcoind.rs
index 6572d36d..57a5d1f2 100644
--- a/gui/src/installer/step/bitcoind.rs
+++ b/gui/src/installer/step/bitcoind.rs
@@ -493,7 +493,7 @@ impl DefineBitcoind {
                 let builder = match selected_auth_type {
                     RpcAuthType::CookieFile => {
                         let cookie_path = rpc_auth_vals.cookie_path.value;
-                        let cookie = std::fs::read_to_string(&cookie_path).map_err(|e| {
+                        let cookie = std::fs::read_to_string(cookie_path).map_err(|e| {
                             Error::Bitcoind(format!("Failed to read cookie file: {}", e))
                         })?;
                         SimpleHttpTransport::builder().cookie_auth(cookie)
diff --git a/gui/src/installer/step/descriptor.rs b/gui/src/installer/step/descriptor.rs
index 7816c4d5..4adda8d5 100644
--- a/gui/src/installer/step/descriptor.rs
+++ b/gui/src/installer/step/descriptor.rs
@@ -719,7 +719,7 @@ impl EditXpubModal {
                             .name
                             .clone()
                     })
-                    .unwrap_or_else(String::new),
+                    .unwrap_or_default(),
             },
             form_xpub: form::Value {
                 valid: true,
@@ -731,7 +731,7 @@ impl EditXpubModal {
                             .key
                             .to_string()
                     })
-                    .unwrap_or_else(String::new),
+                    .unwrap_or_default(),
             },
             keys,
             path_index,
diff --git a/gui/src/installer/view.rs b/gui/src/installer/view.rs
index ee29d616..81a0939e 100644
--- a/gui/src/installer/view.rs
+++ b/gui/src/installer/view.rs
@@ -1621,14 +1621,14 @@ pub fn key_list_view<'a>(
 ) -> Element<'a, Message> {
     let bttn = Button::new(if chosen {
         hw::selected_hardware_wallet(
-            kind.map(|k| k.to_string()).unwrap_or_else(String::new),
+            kind.map(|k| k.to_string()).unwrap_or_default(),
             None::<String>,
             fingerprint,
             Some(name),
         )
     } else {
         hw::supported_hardware_wallet(
-            kind.map(|k| k.to_string()).unwrap_or_else(String::new),
+            kind.map(|k| k.to_string()).unwrap_or_default(),
             None::<String>,
             fingerprint,
             Some(name),
diff --git a/gui/src/loader.rs b/gui/src/loader.rs
index 99441b9a..19f43033 100644
--- a/gui/src/loader.rs
+++ b/gui/src/loader.rs
@@ -95,7 +95,6 @@ impl Loader {
             .daemon_rpc_path
             .clone()
             .unwrap_or_else(|| socket_path(&datadir_path, network));
-        let network = network;
         (
             Loader {
                 network,
@@ -321,7 +320,6 @@ impl Loader {
                 let reader = BufReader::new(file);
                 let last_update_tip = reader
                     .lines()
-                    .into_iter()
                     .filter(|l| {
                         l.as_ref()
                             .map(|l| l.contains("UpdateTip") || l.contains("blockheaders"))