diff --git a/webpack.config.js b/webpack.config.js
index a1cb34e5a..e6bcbe1e0 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -103,7 +103,7 @@ module.exports = function (_env = {}, argv = {}) {
     envVars.NODE_ENV = "development";
     envVars.AZURE_CLIENT_ID = AZURE_CLIENT_ID;
     envVars.AZURE_TENANT_ID = AZURE_TENANT_ID;
-    envVars.AZURE_CLIENT_SECRET = AZURE_CLIENT_SECRET;
+    envVars.AZURE_CLIENT_SECRET = AZURE_CLIENT_SECRET || null;
     envVars.SUBSCRIPTION_ID = SUBSCRIPTION_ID;
     envVars.RESOURCE_GROUP = RESOURCE_GROUP;
     typescriptRule.use[0].options.compilerOptions = { target: "ES2018" };