diff --git a/lodestar b/lodestar
index 0d09a72ebd..6c8267a0b2 100755
--- a/lodestar
+++ b/lodestar
@@ -4,6 +4,6 @@
 #
 # ./lodestar.sh beacon --network mainnet
 
-SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
+SCRIPT_DIR=$(cd "$(dirname -- "$0")" >/dev/null 2>&1 && pwd -P)
 
 exec node --trace-deprecation --max-old-space-size=8192 "$SCRIPT_DIR/packages/cli/bin/lodestar.js" "$@"