diff --git a/falco_event/src/types/primitive/newtypes.rs b/falco_event/src/types/primitive/newtypes.rs
index f54fcea..b6b854b 100644
--- a/falco_event/src/types/primitive/newtypes.rs
+++ b/falco_event/src/types/primitive/newtypes.rs
@@ -273,7 +273,7 @@ impl SigSet {
 
 impl Debug for SigSet {
     fn fmt(&self, fmt: &mut Formatter<'_>) -> std::fmt::Result {
-        write!(fmt, "{:#2x}", self.0)?;
+        write!(fmt, "{:#4x}", self.0)?;
         if self.0 != 0 {
             let mut first = true;
             for sig in self.iter() {
diff --git a/falco_plugin/src/base/wrappers.rs b/falco_plugin/src/base/wrappers.rs
index dc4aa00..b3b0475 100644
--- a/falco_plugin/src/base/wrappers.rs
+++ b/falco_plugin/src/base/wrappers.rs
@@ -117,7 +117,7 @@ pub unsafe extern "C" fn plugin_init<P: Plugin>(
             plugin.cast()
         }
         Err(e) => {
-            let error_str = format!("{:#}", &e);
+            let error_str = format!("{:#}", e);
             log::error!("Failed to initialize plugin: {error_str}");
             let plugin = Box::new(PluginWrapper::<P>::new_error(error_str));
             unsafe {
diff --git a/falco_schema_derive/src/event_info.rs b/falco_schema_derive/src/event_info.rs
index be4f92f..e9d01fd 100644
--- a/falco_schema_derive/src/event_info.rs
+++ b/falco_schema_derive/src/event_info.rs
@@ -109,8 +109,7 @@ impl EventArg {
             let num = num.base10_parse().ok()?;
             let (_, _, args) = event_info.args.as_ref()?;
             let dirfd_arg = args.iter().nth(num)?.ident();
-            let method_name =
-                Ident::new(&format!("{}_dirfd", &self.name.value()), self.name.span());
+            let method_name = Ident::new(&format!("{}_dirfd", self.name.value()), self.name.span());
 
             Some(quote!(
                 #[inline]