diff --git a/scripts/electron_winSign.js b/scripts/electron_winSign.js
index 5ac9c9d..f02b6a0 100644
--- a/scripts/electron_winSign.js
+++ b/scripts/electron_winSign.js
@@ -48,8 +48,7 @@ exports.default = async function(cfg) {
     const appOutDir = path.dirname(inPath);
 
     return new Promise((resolve, reject) => {
-        const args = ['sign'];
-        args.push(...computeSignToolArgs(cfg.options, keyContainer, cfg.path));
+        const args = ['sign'].concat(computeSignToolArgs(cfg.options, keyContainer, cfg.path));
         
         console.log("Running signtool with args", args);
         execFile('signtool', args, {}, (error, stdout) => {