diff --git a/scripts/setup.sh b/scripts/setup.sh
index 477be189d..0641182cd 100755
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -13,7 +13,7 @@ if [[ $os != Linux && $os != FreeBSD ]]; then
 	exit 1
 fi
 
-rootdir=$(readlink -f $(dirname $0))/..
+rootdir=$(dirname "$(realpath "$0")")/..
 source "$rootdir/scripts/common.sh"
 
 function usage() {