diff --git a/README.md b/README.md
index 1aa7a3c..d50f06b 100755
--- a/README.md
+++ b/README.md
@@ -108,11 +108,9 @@ Whenever a tape is ejected, the script will export the tape’s index (as an XML
 To write data onto a tape, run the following command:
 
 ```
-writelto
+writelto -t $tape_serial $source_directory
 ```
 
-When prompted, enter the tape serial and the source directory.
-
 The script will run `gcp` to transfer the data to the LTO tape (`rsync` is used as a backup check for `gcp`).
 
 To read back and create checksums for the contents of a tape, and write checksums to a file named with the tape serial and date, run the following command: