diff --git a/setup.sh b/setup.sh
index ce8a107..cf195c4 100644
--- a/setup.sh
+++ b/setup.sh
@@ -107,7 +107,8 @@ function zpool_drive_id () {
 }
 
 function set_zpool_password () {
-    printf -- '%s\n' 'password' > '/etc/zfs/'"${zpool_name}"'.key'
+    # No newline at the end
+    printf -- '%s' 'password' > '/etc/zfs/'"${zpool_name}"'.key'
     chmod '000' '/etc/zfs/'"${zpool_name}"'.key'
 }