diff --git a/archiso/mkarchiso b/archiso/mkarchiso
index 0318aa688ed6bb3969238a540e5bd9c6d5eb4c05..d2f8febfdcdf2f2ca215a20086da8acd2a9ab6e9 100755
--- a/archiso/mkarchiso
+++ b/archiso/mkarchiso
@@ -33,6 +33,7 @@ iso_application="${app_name} iso"
 override_iso_application=""
 iso_version=""
 install_dir="${app_name}"
+override_install_dir=""
 arch="$(uname -m)"
 pacman_conf="/etc/pacman.conf"
 override_pacman_conf=""