diff --git a/src/more/more.rs b/src/more/more.rs
index 3a121fada..eaf272bb8 100644
--- a/src/more/more.rs
+++ b/src/more/more.rs
@@ -146,7 +146,7 @@ fn more(matches: getopts::Matches) {
         if sz == 0 {
             break;
         }
-        stdout().write(&buffer[0..sz]).unwrap();
+        stdout().write_all(&buffer[0..sz]).unwrap();
         for byte in std::io::stdin().bytes() {
             match byte.unwrap() {
                 b' ' => break,
diff --git a/src/od/peekreader.rs b/src/od/peekreader.rs
index 825335f20..47b05d678 100644
--- a/src/od/peekreader.rs
+++ b/src/od/peekreader.rs
@@ -61,7 +61,7 @@ impl<R: Read> PeekReader<R> {
     fn write_to_tempbuffer(&mut self, bytes: &[u8]) {
         // if temp_buffer is not empty, data has to be inserted in front
         let org_buffer: Vec<_> = self.temp_buffer.drain(..).collect();
-        self.temp_buffer.write(bytes).unwrap();
+        self.temp_buffer.write_all(bytes).unwrap();
         self.temp_buffer.extend(org_buffer);
     }
 }