diff --git a/src/scripts/install-wg-ui.sh b/src/scripts/install-wg-ui.sh
index f650daa..9bbc97f 100755
--- a/src/scripts/install-wg-ui.sh
+++ b/src/scripts/install-wg-ui.sh
@@ -26,7 +26,7 @@ if [ "${NODE_ENV:-}" = "development" ]; then
     DEV_MODE=true
 fi
 
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]:-$0}")" && pwd)"
 REPO_ROOT="$(dirname "$(dirname "$SCRIPT_DIR")")"
 
 require_root() {
@@ -81,7 +81,7 @@ install_deps() {
             apt-get update -y
             apt-get install -y git curl ca-certificates openssl
             ;;
-        fedora | rhel | centos | rocky | almalinux)
+        fedora | rhel | centos | rocky | almalinux | ol)
             dnf install -y git curl ca-certificates openssl
             ;;
         arch | manjaro | endeavouros)