diff --git a/scripts/99_software.sh b/scripts/99_software.sh
index f7b0b6e..a68e8ce 100644
--- a/scripts/99_software.sh
+++ b/scripts/99_software.sh
@@ -107,7 +107,7 @@ if [ ${operation} == "update" ] ; then
             # using sudo with the -c flag, it does not work to use variables, like `${list_aur}``
             # hence the list of aur packages is written to a file, which is used with yay
             echo ${list_aur} > /tmp/list_aur.txt
-            sudo -u ${user} bash -c 'yay -S --needed --noconfirm --timeupdate - < /tmp/list_aur.txt'
+            sudo -u ${user} bash -c 'yay -S --needed --noconfirm --timeupdate - $(</tmp/list_aur.txt)'
         else
             echo "No AUR packages to install"
     fi