diff --git a/lightning/src/sign/type_resolver.rs b/lightning/src/sign/type_resolver.rs
index 2a122da34..fad8c0ac9 100644
--- a/lightning/src/sign/type_resolver.rs
+++ b/lightning/src/sign/type_resolver.rs
@@ -1,14 +1,20 @@
-use core::ops::Deref;
 use crate::sign::{ChannelSigner, SignerProvider};
+use core::ops::Deref;
 
-pub(crate) enum ChannelSignerType<SP: Deref> where SP::Target: SignerProvider {
+pub(crate) enum ChannelSignerType<SP: Deref>
+where
+	SP::Target: SignerProvider,
+{
 	// in practice, this will only ever be an EcdsaChannelSigner (specifically, Writeable)
 	Ecdsa(<SP::Target as SignerProvider>::EcdsaSigner),
 	#[cfg(taproot)]
 	Taproot(<SP::Target as SignerProvider>::TaprootSigner),
 }
 
-impl<SP: Deref> ChannelSignerType<SP> where SP::Target: SignerProvider {
+impl<SP: Deref> ChannelSignerType<SP>
+where
+	SP::Target: SignerProvider,
+{
 	pub(crate) fn as_ref(&self) -> &dyn ChannelSigner {
 		match self {
 			ChannelSignerType::Ecdsa(ecs) => ecs,
@@ -29,15 +35,17 @@ impl<SP: Deref> ChannelSignerType<SP> where SP::Target: SignerProvider {
 	pub(crate) fn as_ecdsa(&self) -> Option<&<SP::Target as SignerProvider>::EcdsaSigner> {
 		match self {
 			ChannelSignerType::Ecdsa(ecs) => Some(ecs),
-			_ => None
+			_ => None,
 		}
 	}
 
 	#[allow(unused)]
-	pub(crate) fn as_mut_ecdsa(&mut self) -> Option<&mut <SP::Target as SignerProvider>::EcdsaSigner> {
+	pub(crate) fn as_mut_ecdsa(
+		&mut self,
+	) -> Option<&mut <SP::Target as SignerProvider>::EcdsaSigner> {
 		match self {
 			ChannelSignerType::Ecdsa(ecs) => Some(ecs),
-			_ => None
+			_ => None,
 		}
 	}
 }