diff --git a/index.js b/index.js
index 0d0ff93f..d9b7cc9c 100644
--- a/index.js
+++ b/index.js
@@ -57,7 +57,7 @@ module.exports = {
 
     if (this.fastboot) {
       let options = makeFastbootTestingConfig({ distPath }, pkg);
-      reloadServer(this.fastboot, distPath, options);
+      reloadServer(this.fastboot, distPath, pkg, options);
     } else {
       this.fastboot = createServer(distPath, pkg);
     }
diff --git a/lib/helpers.js b/lib/helpers.js
index df48172d..6671c9d9 100644
--- a/lib/helpers.js
+++ b/lib/helpers.js
@@ -56,27 +56,64 @@ function createFastbootTest(app, callback) {
     callback({ req, res, options, urlToVisit });
   });
 }
-  
+
 function createFastbootEcho(app) {
   app.post('/fastboot-testing/echo', bodyParser.text(), (req, res) => {
     res.send(req.body);
   });
 }
 
-function reloadServer(fastboot, distPath, options) {
-  fastboot.reload({ distPath });
+function reloadServer(fastboot, distPath, pkg, options) {
+  let config  = makeFastbootTestingConfig({ distPath }, pkg);
+  setEnvironment(config.environment, () => fastboot.reload({ distPath }));
   options.setupFastboot(fastboot);
 }
 
 function createServer(distPath, pkg) {
-  let options = makeFastbootTestingConfig({ distPath }, pkg);
-  let fastboot = new FastBoot(options);
+  let options  = makeFastbootTestingConfig({ distPath }, pkg);
+  let fastboot = setEnvironment(options.environment, () => new FastBoot(options))
   options.setupFastboot(fastboot);
 
   return fastboot;
 }
 
-function makeFastbootTestingConfig(config, pkg) {
+function setEnvironment(environment, callback = function() {}) {
+  let oldConfig;
+  if (process.env.APP_CONFIG) {
+    oldConfig = process.env.APP_CONFIG;
+  }
+  // Get app's desired environment settings and set this ENV var
+  // which tells the Ember App when being built in fastboot to use
+  // these settings and not the defaults (which would be whatever
+  // environment this was being run from)
+  // https://github.com/embermap/ember-cli-fastboot-testing/issues/32
+
+  if (environment) {
+    process.env.APP_CONFIG = JSON.stringify(environment);
+  }
+
+  let fastboot = callback()
+
+  if (oldConfig) {
+   process.env.APP_CONFIG = oldConfig;
+  }
+  else {
+   delete process.env.APP_CONFIG
+  }
+
+  return fastboot;
+}
+
+function readEnvironment(pkg, name) {
+  let configPath = 'config';
+  if (pkg['ember-addon'] && pkg['ember-addon']['configPath']) {
+    configPath = pkg['ember-addon']['configPath'];
+  }
+  let appEnvironment = require(path.resolve(configPath, 'environment.js'));
+  return appEnvironment(name);
+}
+
+function makeFastbootTestingConfig(config, pkg, useEnvironment) {
   let defaults = {
     setupFastboot() {}
   };
@@ -88,12 +125,13 @@ function makeFastbootTestingConfig(config, pkg) {
   }
 
   let fastbootTestConfigPath = path.resolve(configPath, 'fastboot-testing.js');
-
-  let customized = fs.existsSync(fastbootTestConfigPath) ?
+  let overrides = fs.existsSync(fastbootTestConfigPath) ?
     require(fastbootTestConfigPath) :
     {};
 
-  return Object.assign({}, config, defaults, customized);
+  overrides.environment = readEnvironment(pkg, overrides.useEnvironment || 'test');
+
+  return Object.assign({}, config, defaults, overrides);
 }
 
 module.exports = {
@@ -104,4 +142,4 @@ module.exports = {
   reloadServer,
   createServer,
   makeFastbootTestingConfig
-};
\ No newline at end of file
+};
diff --git a/tests/dummy/app/pods/examples/environment/controller.js b/tests/dummy/app/pods/examples/environment/controller.js
new file mode 100644
index 00000000..4c09b9c3
--- /dev/null
+++ b/tests/dummy/app/pods/examples/environment/controller.js
@@ -0,0 +1,5 @@
+import Controller from '@ember/controller';
+import config from '../../../config/environment';
+export default Controller.extend({
+  env: config.environment,
+});
diff --git a/tests/dummy/app/pods/examples/environment/template.hbs b/tests/dummy/app/pods/examples/environment/template.hbs
new file mode 100644
index 00000000..7ea6770f
--- /dev/null
+++ b/tests/dummy/app/pods/examples/environment/template.hbs
@@ -0,0 +1 @@
+<h1>{{env}}</h1>
diff --git a/tests/dummy/app/router.js b/tests/dummy/app/router.js
index 4faa3429..a05d58fd 100644
--- a/tests/dummy/app/router.js
+++ b/tests/dummy/app/router.js
@@ -20,6 +20,8 @@ Router.map(function() {
   });
 
   this.route('examples', function() {
+    this.route('environment');
+
     this.route('redirects', function() {
       this.route('transition-to');
       this.route('replace-with');
diff --git a/tests/dummy/config/environment.js b/tests/dummy/config/environment.js
index 21bc4a9d..b2aa52f9 100644
--- a/tests/dummy/config/environment.js
+++ b/tests/dummy/config/environment.js
@@ -38,7 +38,7 @@ module.exports = function(environment) {
     // ENV.APP.LOG_VIEW_LOOKUPS = true;
   }
 
-  if (environment === 'test') {
+  if (environment === 'test' || environment == 'specified-by-user') {
     // Testem prefers this...
     ENV.locationType = 'none';
 
diff --git a/tests/dummy/config/fastboot-testing.js b/tests/dummy/config/fastboot-testing.js
index 00927c03..4f4a4e24 100644
--- a/tests/dummy/config/fastboot-testing.js
+++ b/tests/dummy/config/fastboot-testing.js
@@ -3,6 +3,7 @@ module.exports = {
   sandboxGlobals: {
     SampleGlobal: `TestSampleGlobal`
   },
+  useEnvironment: 'specified-by-user',
   setupFastboot: fastbootInstance => {
     // the modified SampleGlobal will be available in window.SampleGlobal in model of route
     fastbootInstance._app.sandbox.sandbox.SampleGlobal = 'Modified TestSampleGlobal';
diff --git a/tests/fastboot/environment-test.js b/tests/fastboot/environment-test.js
new file mode 100644
index 00000000..953395d4
--- /dev/null
+++ b/tests/fastboot/environment-test.js
@@ -0,0 +1,11 @@
+import { module, test } from 'qunit';
+import { setup, visit } from 'ember-cli-fastboot-testing/test-support';
+
+module('Fastboot | environment', function(hooks) {
+  setup(hooks);
+
+  test('it renders the correct h1 title', async function(assert) {
+    await visit('/examples/environment');
+    assert.dom('h1').includesText('specified-by-user');
+  });
+});