diff --git a/update_directory_hashes.sh b/update_directory_hashes.sh
index 339858f..15c3bb8 100755
--- a/update_directory_hashes.sh
+++ b/update_directory_hashes.sh
@@ -27,7 +27,7 @@ write_directory_hashes() {
 
 write_directory_hashes "0"
 vanity_number="$(node "$(dirname "$0")/find_vanity.js" "$directory/directory_hashes.js")"
-printf 'Found vanity number: %s\n' $vanity_number >&3
+printf 'Found vanity number: %s\n' $vanity_number >&2
 write_directory_hashes "$vanity_number"
 
 echo "The hash given by the page should be:" >&2