diff --git a/acmed/src/account.rs b/acmed/src/account.rs
index a8f3f29..0c07946 100644
--- a/acmed/src/account.rs
+++ b/acmed/src/account.rs
@@ -242,27 +242,27 @@ impl Account {
 	}
 
 	pub fn set_account_url(&mut self, endpoint_name: &str, account_url: &str) -> Result<(), Error> {
-		let mut ep = self.get_endpoint_mut(endpoint_name)?;
+		let ep = self.get_endpoint_mut(endpoint_name)?;
 		ep.account_url = account_url.to_string();
 		Ok(())
 	}
 
 	pub fn set_orders_url(&mut self, endpoint_name: &str, orders_url: &str) -> Result<(), Error> {
-		let mut ep = self.get_endpoint_mut(endpoint_name)?;
+		let ep = self.get_endpoint_mut(endpoint_name)?;
 		ep.orders_url = orders_url.to_string();
 		Ok(())
 	}
 
 	pub fn update_key_hash(&mut self, endpoint_name: &str) -> Result<(), Error> {
 		let key = self.current_key.clone();
-		let mut ep = self.get_endpoint_mut(endpoint_name)?;
+		let ep = self.get_endpoint_mut(endpoint_name)?;
 		ep.key_hash = hash_key(&key)?;
 		Ok(())
 	}
 
 	pub fn update_contacts_hash(&mut self, endpoint_name: &str) -> Result<(), Error> {
 		let ct = self.contacts.clone();
-		let mut ep = self.get_endpoint_mut(endpoint_name)?;
+		let ep = self.get_endpoint_mut(endpoint_name)?;
 		ep.contacts_hash = hash_contacts(&ct);
 		Ok(())
 	}
@@ -270,7 +270,7 @@ impl Account {
 	pub fn update_external_account_hash(&mut self, endpoint_name: &str) -> Result<(), Error> {
 		if let Some(ec) = &self.external_account {
 			let ec = ec.clone();
-			let mut ep = self.get_endpoint_mut(endpoint_name)?;
+			let ep = self.get_endpoint_mut(endpoint_name)?;
 			ep.external_account_hash = hash_external_account(&ec);
 		}
 		Ok(())
diff --git a/acmed/src/config.rs b/acmed/src/config.rs
index 032654d..9ef437f 100644
--- a/acmed/src/config.rs
+++ b/acmed/src/config.rs
@@ -760,7 +760,7 @@ fn read_cnf(path: &Path, loaded_files: &mut BTreeSet<PathBuf>) -> Result<Config,
 fn dispatch_global_env_vars(config: &mut Config) {
 	if let Some(glob) = &config.global {
 		if !glob.env.is_empty() {
-			for mut cert in config.certificate.iter_mut() {
+			for cert in config.certificate.iter_mut() {
 				let mut new_vars = glob.env.clone();
 				for (k, v) in cert.env.iter() {
 					new_vars.insert(k.to_string(), v.to_string());