diff --git a/.travis.yml b/.travis.yml
index a63184a0..ef1afd0b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,6 @@ dist: trusty
 language: node_js
 node_js:
   - '10'
-  - '11'
   - '12'
   - '13'
 env:
diff --git a/README.md b/README.md
index 463ba02a..c347e3c6 100644
--- a/README.md
+++ b/README.md
@@ -54,7 +54,8 @@ unzip master.zip
 cd pigallery2-master # enter the unzipped directory
 npm install
 ```
-**Note**: if you run `npm run build-release`, it creates a clean, minified, production ready version from the app in the `release` folder, that is ready to deploy.
+**Note**: if you run `npm run create-release`, it creates a clean, minified, production ready version from the app in the `release` folder, that is ready to deploy.
+**Note**: you can use `npm run create-release -- --languages=fr,ro` to restrict building to the listed languages (english is added by default)
 
 #### 1.1.2 Run PiGallery2
 ```bash
diff --git a/frontend/app/app.module.ts b/frontend/app/app.module.ts
index 81298fea..b4039f65 100644
--- a/frontend/app/app.module.ts
+++ b/frontend/app/app.module.ts
@@ -125,7 +125,7 @@ export function translationsFactory(locale: string) {
   if (locale === 'en') {
     return '';
   }
-  return require(`raw-loader!../translate/messages.${locale}.xlf`);
+  return (<any>require(`raw-loader!../translate/messages.${locale}.xlf`)).default;
 }
 
 @NgModule({
diff --git a/gulpfile.ts b/gulpfile.ts
index 8d86f0af..e1400c7e 100644
--- a/gulpfile.ts
+++ b/gulpfile.ts
@@ -43,9 +43,25 @@ const getLanguages = () => {
   const files: string[] = dirCont.filter((elm) => {
     return elm.match(/.*\.[a-zA-Z]+\.(xlf)/ig);
   });
-  return files.map((f: string) => {
+
+  // get languages to filter
+  let languageFilter: string[] = null;
+  for (let i = 0; i < process.argv.length; i++) {
+    if (process.argv[i].startsWith('--languages=')) {
+      languageFilter = process.argv[i].replace('--languages=', '').split(',');
+    }
+  }
+
+  let languages = files.map((f: string) => {
     return f.split('.')[1];
   });
+
+  if (languageFilter !== null) {
+    languages = languages.filter((l) => {
+      return languageFilter.indexOf(l) !== -1;
+    });
+  }
+  return languages;
 };
 
 gulp.task('build-frontend', (() => {
@@ -98,11 +114,11 @@ gulp.task('zip-release', function () {
     .pipe(gulp.dest('.'));
 });
 
-gulp.task('build-release', gulp.series('build-frontend', 'build-backend', 'copy-static', 'copy-package', 'zip-release'));
+gulp.task('create-release', gulp.series('build-frontend', 'build-backend', 'copy-static', 'copy-package', 'zip-release'));
 
 
 const simpleBuild = (isProd: boolean) => {
-  const languages = getLanguages().filter(function (l) {
+  const languages = getLanguages().filter((l) => {
     return l !== 'en';
   });
   const tasks = [];
diff --git a/package.json b/package.json
index 78d7e163..b09e7f1b 100644
--- a/package.json
+++ b/package.json
@@ -8,8 +8,9 @@
   "main": "./backend/index.js",
   "bin": "./backend/index.js",
   "scripts": {
-    "install": "tsc && gulp build-prod",
-    "build-release": "gulp build-release",
+    "install": "npm run build-prod",
+    "build-prod": "tsc && gulp build-prod",
+    "create-release": "gulp build-release",
     "build-backend": "tsc",
     "pretest": "tsc",
     "test": "ng test && mocha --recursive test/backend/unit && mocha --recursive test/backend/integration  && mocha --recursive test/common/unit ",