diff --git a/src/cue_sheet.rs b/src/cue_sheet.rs
index c679cb2..4857d27 100644
--- a/src/cue_sheet.rs
+++ b/src/cue_sheet.rs
@@ -39,7 +39,7 @@ use ::metadata::cuex::NrgCuexTrack;
 ///
 /// The output file's name will be `img_path`'s base name stripped for its
 /// extension (if any), with a ".cue" extension.
-pub fn write_cue_sheet(img_path: &String, metadata: &NrgMetadata)
+pub fn write_cue_sheet(img_path: &str, metadata: &NrgMetadata)
                        -> Result<(), NrgError> {
     // Make sure we have a cue sheet in the metadata
     let cuex_tracks = match metadata.cuex_chunk {
@@ -51,7 +51,7 @@ pub fn write_cue_sheet(img_path: &String, metadata: &NrgMetadata)
     let img_name = PathBuf::from(img_path);
     let img_name = match img_name.file_name() {
         Some(name) => name,
-        None => return Err(NrgError::FileName(img_path.clone())),
+        None => return Err(NrgError::FileName(img_path.to_string())),
     };
 
     // Set the cue sheet file's name
diff --git a/src/raw_audio.rs b/src/raw_audio.rs
index f241127..b669f2c 100644
--- a/src/raw_audio.rs
+++ b/src/raw_audio.rs
@@ -41,7 +41,7 @@ const RAW96_SEC_SIZE: u16 = 2448;
 ///
 /// The output file's name is derived from `img_path`.
 pub fn extract_nrg_raw_audio(in_fd: &mut File,
-                             img_path: &String,
+                             img_path: &str,
                              metadata: &NrgMetadata)
                              -> Result<(), NrgError> {
     // Seek to the first audio byte
@@ -152,14 +152,14 @@ fn copy_raw96_audio(in_fd: &mut File, out_fd: &mut File, count: u64)
 ///
 /// The output file's name will be `img_path`'s base name stripped for its
 /// extension (if any), with a ".raw" extension.
-fn make_output_file_name(img_path: &String) -> Result<String, NrgError> {
+fn make_output_file_name(img_path: &str) -> Result<String, NrgError> {
     let mut name = PathBuf::from(img_path);
     name.set_extension("raw");
     let name = try!(name.file_name().ok_or(
         NrgError::FileName(name.to_string_lossy().into_owned())));
 
     // Make sure the new name and the original name are different
-    if name == img_path.as_str() {
+    if name == img_path {
         return Err(NrgError::FileName("Input and output file are identical"
                                       .to_string()));
     }