diff --git a/manual-install-helper.sh b/manual-install-helper.sh
index fe6749c69..e66bcbca5 100755
--- a/manual-install-helper.sh
+++ b/manual-install-helper.sh
@@ -7,6 +7,7 @@ cd "$(dirname "$0")"
 export base="$(pwd)"
 source ./scriptdata/functions
 source ./scriptdata/installers
+source ./scriptdata/environment-variables
 
 if command -v pacman >/dev/null 2>&1;then printf "\e[31m[$0]: pacman found, it seems that the system is ArchLinux or Arch-based distro. Aborting...\e[0m\n";exit 1;fi
 install-ags