diff --git a/acmed/src/config.rs b/acmed/src/config.rs
index 8b1145a..036cef2 100644
--- a/acmed/src/config.rs
+++ b/acmed/src/config.rs
@@ -662,8 +662,8 @@ fn init_directories(config: &Config) -> Result<(), Error> {
     Ok(())
 }
 
-fn get_cnf_path(from: &PathBuf, file: &str) -> Result<Vec<PathBuf>, Error> {
-    let mut path = from.clone().canonicalize()?;
+fn get_cnf_path(from: &Path, file: &str) -> Result<Vec<PathBuf>, Error> {
+    let mut path = from.to_path_buf().canonicalize()?;
     path.pop();
     path.push(file);
     let err = format!("{:?}: invalid UTF-8 path", path);
@@ -681,14 +681,14 @@ fn get_cnf_path(from: &PathBuf, file: &str) -> Result<Vec<PathBuf>, Error> {
     Ok(g)
 }
 
-fn read_cnf(path: &PathBuf, loaded_files: &mut BTreeSet<PathBuf>) -> Result<Config, Error> {
+fn read_cnf(path: &Path, loaded_files: &mut BTreeSet<PathBuf>) -> Result<Config, Error> {
     let path = path.canonicalize()?;
     if loaded_files.contains(&path) {
         info!("{}: configuration file already loaded", path.display());
         return Ok(Config::default());
     }
     loaded_files.insert(path.clone());
-    info!("{}: loading configuration file", path.display());
+    info!("{}: loading configuration file", &path.display());
     let mut file =
         File::open(&path).map_err(|e| Error::from(e).prefix(&path.display().to_string()))?;
     let mut contents = String::new();
diff --git a/acmed/src/storage.rs b/acmed/src/storage.rs
index bc7930f..6f17005 100644
--- a/acmed/src/storage.rs
+++ b/acmed/src/storage.rs
@@ -9,7 +9,7 @@ use std::collections::HashMap;
 use std::fmt;
 use std::fs::{File, OpenOptions};
 use std::io::{Read, Write};
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 
 #[cfg(target_family = "unix")]
 use std::os::unix::fs::OpenOptionsExt;
@@ -123,7 +123,7 @@ fn get_file_path(fm: &FileManager, file_type: FileType) -> Result<PathBuf, Error
     Ok(path)
 }
 
-fn read_file(fm: &FileManager, path: &PathBuf) -> Result<Vec<u8>, Error> {
+fn read_file(fm: &FileManager, path: &Path) -> Result<Vec<u8>, Error> {
     fm.trace(&format!("reading file {:?}", path));
     let mut file = File::open(path)?;
     let mut contents = vec![];
@@ -132,7 +132,7 @@ fn read_file(fm: &FileManager, path: &PathBuf) -> Result<Vec<u8>, Error> {
 }
 
 #[cfg(unix)]
-fn set_owner(fm: &FileManager, path: &PathBuf, file_type: FileType) -> Result<(), Error> {
+fn set_owner(fm: &FileManager, path: &Path, file_type: FileType) -> Result<(), Error> {
     let (uid, gid) = match file_type {
         FileType::Certificate => (fm.cert_file_owner.to_owned(), fm.cert_file_group.to_owned()),
         FileType::PrivateKey => (fm.pk_file_owner.to_owned(), fm.pk_file_group.to_owned()),