diff --git a/src/ls/ls.rs b/src/ls/ls.rs
index eef3b8945..3a91b4a1c 100644
--- a/src/ls/ls.rs
+++ b/src/ls/ls.rs
@@ -336,14 +336,14 @@ fn display_dir_entry_size(entry: &PathBuf, options: &getopts::Matches) -> (usize
 fn pad_left(string: String, count: usize) -> String {
     if count > string.len() {
         let pad = count - string.len();
-        let pad = String::from_utf8(vec![b' ' as u8; pad]).unwrap();
+        let pad = String::from_utf8(vec![b' '; pad]).unwrap();
         format!("{}{}", pad, string)
     } else {
         string
     }
 }
 
-fn display_items(items: &Vec<PathBuf>, strip: Option<&Path>, options: &getopts::Matches) {
+fn display_items(items: &[PathBuf], strip: Option<&Path>, options: &getopts::Matches) {
     if options.opt_present("long") || options.opt_present("numeric-uid-gid") {
         let (mut max_links, mut max_size) = (1, 1);
         for item in items {
diff --git a/src/od/od.rs b/src/od/od.rs
index 8967a5e8c..d10227fa9 100644
--- a/src/od/od.rs
+++ b/src/od/od.rs
@@ -478,7 +478,7 @@ fn print_bytes(prefix: &str, input_decoder: &MemoryDecoder, output_info: &Output
 /// `skip_bytes` is the number of bytes skipped from the input
 /// `read_bytes` is an optional limit to the number of bytes to read
 fn open_input_peek_reader<'a>(
-    input_strings: &'a Vec<String>,
+    input_strings: &'a [String],
     skip_bytes: usize,
     read_bytes: Option<usize>,
 ) -> PeekReader<PartialReader<MultifileReader<'a>>> {