diff --git a/sign.js b/sign.js
index 14bee1835f..cbae2b0ad7 100644
--- a/sign.js
+++ b/sign.js
@@ -1,5 +1,5 @@
 exports.default = async function(configuration) {
-  if (process.env.ELECTRON_BUILDER_SIGN === 1) {
+  if (parseInt(process.env.ELECTRON_BUILDER_SIGN) === 1) {
     require("child_process").execSync(
       `azuresigntool sign ` +
       `-kvu ${process.env.SIGNING_VAULT_URL} ` +