diff --git a/gossip-bin/src/commands.rs b/gossip-bin/src/commands.rs
index 8dcc3905..ee950161 100644
--- a/gossip-bin/src/commands.rs
+++ b/gossip-bin/src/commands.rs
@@ -327,7 +327,7 @@ pub fn help(_cmd: Command, mut args: env::Args) -> Result<(), Error> {
         for c in COMMANDS.iter() {
             if sub == c.cmd {
                 println!("Usage:   gossip {} {}", c.cmd, c.usage_params);
-                println!("");
+                println!();
                 println!("   {}", c.desc);
                 return Ok(());
             }
@@ -335,9 +335,9 @@ pub fn help(_cmd: Command, mut args: env::Args) -> Result<(), Error> {
         println!("No such command {}", sub);
     } else {
         println!("Usage:   gossip [--rapid] <cmd>");
-        println!("");
+        println!();
         println!("  --rapid         Use faster storage access at the risk of data corruption");
-        println!("");
+        println!();
         println!("  <cmd> can be any of these:");
         for c in COMMANDS.iter() {
             if c.cmd == "oneshot" {
diff --git a/gossip-lib/src/people/mod.rs b/gossip-lib/src/people/mod.rs
index d073ddda..90ad217b 100644
--- a/gossip-lib/src/people/mod.rs
+++ b/gossip-lib/src/people/mod.rs
@@ -674,7 +674,7 @@ impl People {
             let tag = ParsedTag::Pubkey {
                 pubkey: *pubkey,
                 recommended_relay_url,
-                petname: petname,
+                petname,
             }
             .into_tag();
             if *private {
diff --git a/gossip-lib/src/post.rs b/gossip-lib/src/post.rs
index 3c9a44d4..743ffe7f 100644
--- a/gossip-lib/src/post.rs
+++ b/gossip-lib/src/post.rs
@@ -525,7 +525,7 @@ fn add_parent_tags(tags: &mut Vec<Tag>, parent: &Event, author: PublicKey) {
         tags.push(
             ParsedTag::Address {
                 address: NAddr {
-                    d: parent.parameter().unwrap_or(String::new()),
+                    d: parent.parameter().unwrap_or_default(),
                     relays: match relay_hint {
                         Some(ref h) => vec![h.clone()],
                         None => vec![],
@@ -597,7 +597,7 @@ fn set_parent_as_root_tags(tags: &mut Vec<Tag>, parent: &Event) {
         tags.push(
             ParsedTag::RootAddress {
                 address: NAddr {
-                    d: parent.parameter().unwrap_or(String::new()),
+                    d: parent.parameter().unwrap_or_default(),
                     relays: match relay_hint {
                         Some(ref h) => vec![h.clone()],
                         None => vec![],