diff --git a/debi.sh b/debi.sh
index 9780def..5f85f8e 100755
--- a/debi.sh
+++ b/debi.sh
@@ -280,13 +280,13 @@ while [ $# -gt 0 ]; do
     shift
 done
 
-installer="debian-$suite"
-installer_directory="/boot/$installer"
-
 if [ -n "$authorized_keys_url" ] && ! download "$authorized_keys_url" /dev/null; then
     err "Failed to download SSH authorized public keys from \"$authorized_keys_url\""
 fi
 
+installer="debian-$suite"
+installer_directory="/boot/$installer"
+
 save_preseed='cat'
 if [ "$dry_run" = false ]; then
     [ "$(id -u)" -ne 0 ] && err 'root privilege is required'