diff --git a/install.sh b/install.sh
index 7fde3d4..4c5a03f 100755
--- a/install.sh
+++ b/install.sh
@@ -118,7 +118,7 @@ fi
 step "Running setup..."
 echo
 chmod +x setup.sh
-./setup.sh "${SETUP_ARGS[@]}"
+./setup.sh "${SETUP_ARGS[@]+"${SETUP_ARGS[@]}"}"
 
 # ---------- done ----------
 echo