diff --git a/angular.json b/angular.json
index af54062..6132feb 100644
--- a/angular.json
+++ b/angular.json
@@ -40,7 +40,7 @@
                 {
                   "type": "initial",
                   "maximumWarning": "500kb",
-                  "maximumError": "1mb"
+                  "maximumError": "2mb"
                 },
                 {
                   "type": "anyComponentStyle",
@@ -52,12 +52,12 @@
                 {
                   "replace": "src/environments/environment.ts",
                   "with": "src/environments/environment.prod.ts"
-                },
-                {
-                  "replace": "src/index.html",
-                  "with": "src/index.prod.html"
                 }
               ],
+              "index": {
+                "input": "src/index.prod.html",
+                "output": "index.html"
+              },
               "outputHashing": "all"
             },
             "development": {
diff --git a/scripts/process-environment.js b/scripts/process-environment.js
index 7bd12c1..b966df3 100644
--- a/scripts/process-environment.js
+++ b/scripts/process-environment.js
@@ -4,7 +4,18 @@ const fs = require('fs');
 const path = require('path');
 const _ = require('lodash');
 
-const envDict = process.env;
+const DefaultEnv = {
+    SITE_TITLE: 'mira',
+    BASE_URL: '/',
+    CHROME_EXTENSION_ID: '',
+    FIREFOX_EXTENSION_ID: '',
+    FIREFOX_EXTENSION_URL: '',
+    EDGE_EXTENSION_ID: ''
+};
+
+const envDict = Object.assign({}, DefaultEnv, process.env);
+console.log('enviroment variables:');
+console.log(JSON.stringify(envDict, null, 2));
 const envFileTemplatePath = path.join(__dirname, '../src/environments/_environment.prod.ts');
 const envFilePath = path.join(__dirname, '../src/environments/environment.prod.ts');
 const envFileTemplate = fs.readFileSync(envFileTemplatePath, {encoding: 'utf-8'});
@@ -12,7 +23,7 @@ console.log('Updating environment.prod.ts');
 const compiledEnvFileTemplate = _.template(envFileTemplate);
 fs.writeFileSync(envFilePath, compiledEnvFileTemplate(envDict), {encoding: 'utf-8'});
 
-const indexTemplatePath = path.join(__dirname, 'src/_index.html');
+const indexTemplatePath = path.join(__dirname, '../src/_index.html');
 const indexTemplate = fs.readFileSync(indexTemplatePath, {encoding: 'utf-8'});
 console.log('Updating index.html');
 const compiledIndexTemplate = _.template(indexTemplate);
diff --git a/src/environments/_environment.prod.ts b/src/environments/_environment.prod.ts
index 3f91f0c..86a98c3 100644
--- a/src/environments/_environment.prod.ts
+++ b/src/environments/_environment.prod.ts
@@ -1,6 +1,6 @@
 export const environment = {
-  production: false,
-  siteTitle: '<%= SITE_TILE =>',
+  production: true,
+  siteTitle: '<%= SITE_TITLE %>',
   chromeExtensionId: '<%= CHROME_EXTENSION_ID %>',
   firefoxExtensionId: '<%= FIREFOX_EXTENSION_ID %>',
   firefoxExtensionUrl: '<%= FIREFOX_EXTENSION_URL %>',