From 20389f5a6246ecfbadd13b7941e23433b73ac157 Mon Sep 17 00:00:00 2001
From: Daniel Banck <dbanck@users.noreply.github.com>
Date: Fri, 8 Apr 2022 14:18:27 +0200
Subject: [PATCH] fix LANGUAGE_SERVER_VERSION test in preview script (#1034)

---
 build/preview | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/preview b/build/preview
index fc7fcabb7..4f23110e0 100755
--- a/build/preview
+++ b/build/preview
@@ -9,7 +9,7 @@ cd $ROOT_RELATIVE_DIR
 
 # get current version info
 VERSION=`git log -1 --format=%cd --date="format:%Y.%-m.%-d%H"`
-if [ -z "$LANGUAGE_SERVER_VERSION" ]; then
+if [ -z "${LANGUAGE_SERVER_VERSION:-}" ]; then
   LANGUAGE_SERVER_VERSION="$(jq -r .langServer.version package.json)"
 fi