diff --git a/src/hyperfine/benchmark.rs b/src/hyperfine/benchmark.rs
index 3ece1f9..f7547fd 100644
--- a/src/hyperfine/benchmark.rs
+++ b/src/hyperfine/benchmark.rs
@@ -90,7 +90,7 @@ pub fn time_shell_command(
 /// Measure the average shell spawning time
 pub fn mean_shell_spawning_time(
     shell: &str,
-    style: &OutputStyleOption,
+    style: OutputStyleOption,
     show_output: bool,
 ) -> io::Result<TimingResult> {
     const COUNT: u64 = 200;
@@ -210,7 +210,7 @@ pub fn run_benchmark(
         let progress_bar = get_progress_bar(
             options.warmup_count,
             "Performing warmup runs",
-            &options.output_style,
+            options.output_style,
         );
 
         for _ in 0..options.warmup_count {
@@ -230,7 +230,7 @@ pub fn run_benchmark(
     let progress_bar = get_progress_bar(
         options.runs.min,
         "Initial time measurement",
-        &options.output_style,
+        options.output_style,
     );
 
     // Run init command
diff --git a/src/hyperfine/internal.rs b/src/hyperfine/internal.rs
index 973a42b..45c7138 100644
--- a/src/hyperfine/internal.rs
+++ b/src/hyperfine/internal.rs
@@ -11,15 +11,15 @@ use std::iter::Iterator;
 pub const MIN_EXECUTION_TIME: Second = 5e-3;
 
 /// Return a pre-configured progress bar
-pub fn get_progress_bar(length: u64, msg: &str, option: &OutputStyleOption) -> ProgressBar {
-    let progressbar_style = match *option {
+pub fn get_progress_bar(length: u64, msg: &str, option: OutputStyleOption) -> ProgressBar {
+    let progressbar_style = match option {
         OutputStyleOption::Basic | OutputStyleOption::Color => ProgressStyle::default_bar(),
         _ => ProgressStyle::default_spinner()
             .tick_chars("⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏")
             .template(" {spinner} {msg:<30} {wide_bar} ETA {eta_precise}"),
     };
 
-    let progress_bar = match *option {
+    let progress_bar = match option {
         OutputStyleOption::Basic | OutputStyleOption::Color => ProgressBar::hidden(),
         _ => ProgressBar::new(length),
     };
diff --git a/src/hyperfine/units.rs b/src/hyperfine/units.rs
index cee9037..09364ea 100644
--- a/src/hyperfine/units.rs
+++ b/src/hyperfine/units.rs
@@ -14,16 +14,16 @@ pub enum Unit {
 
 impl Unit {
     /// The abbreviation of the Unit.
-    pub fn short_name(&self) -> String {
-        match *self {
+    pub fn short_name(self) -> String {
+        match self {
             Unit::Second => String::from("s"),
             Unit::MilliSecond => String::from("ms"),
         }
     }
 
     /// Returns the Second value formatted for the Unit.
-    pub fn format(&self, value: Second) -> String {
-        match *self {
+    pub fn format(self, value: Second) -> String {
+        match self {
             Unit::Second => format!("{:.3}", value),
             Unit::MilliSecond => format!("{:.1}", value * 1e3),
         }
diff --git a/src/main.rs b/src/main.rs
index 0c56b89..61fc8c0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -32,7 +32,7 @@ fn run(
     options: &HyperfineOptions,
 ) -> io::Result<Vec<BenchmarkResult>> {
     let shell_spawning_time =
-        mean_shell_spawning_time(&options.shell, &options.output_style, options.show_output)?;
+        mean_shell_spawning_time(&options.shell, options.output_style, options.show_output)?;
 
     let mut timing_results = vec![];