diff --git a/src/uu/hashsum/src/digest.rs b/src/uu/hashsum/src/digest.rs
index 809223fa7..61f425662 100644
--- a/src/uu/hashsum/src/digest.rs
+++ b/src/uu/hashsum/src/digest.rs
@@ -297,15 +297,15 @@ mod tests {
         // Writing "\r" in one call to `write()`, and then "\n" in another.
         let mut digest = Box::new(md5::Context::new()) as Box<dyn Digest>;
         let mut writer_crlf = DigestWriter::new(&mut digest, false);
-        writer_crlf.write(&[b'\r']).unwrap();
-        writer_crlf.write(&[b'\n']).unwrap();
+        writer_crlf.write_all(&[b'\r']).unwrap();
+        writer_crlf.write_all(&[b'\n']).unwrap();
         writer_crlf.finalize();
         let result_crlf = digest.result_str();
 
         // We expect "\r\n" to be replaced with "\n" in text mode on Windows.
         let mut digest = Box::new(md5::Context::new()) as Box<dyn Digest>;
         let mut writer_lf = DigestWriter::new(&mut digest, false);
-        writer_lf.write(&[b'\n']).unwrap();
+        writer_lf.write_all(&[b'\n']).unwrap();
         writer_lf.finalize();
         let result_lf = digest.result_str();