diff --git a/package.json b/package.json
index d4d6a301b487766c53d7350deef55acdb0057347..38853e740270d297d53ba589eca2f74bbd241eee 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "start": "ng serve --proxy-config proxy.conf.json",
     "start-aot-fr": "ng serve --configuration=aot-fr",
     "start-aot-en": "ng serve --configuration=aot-en",
-    "build-i18n:dev": "node --max_old_space_size=4096 ./node_modules/@angular/cli/bin/ng build --configuration=development-fr",
+    "build-i18n:dev": "for lang in en fr; do node --max_old_space_size=4096 ./node_modules/@angular/cli/bin/ng build --configuration=development-$lang; done",
     "build-i18n:prod": "for lang in en fr; do node --max_old_space_size=4096 ./node_modules/@angular/cli/bin/ng build --configuration=production-$lang; done",
     "win-build-i18n:fr": "node --max_old_space_size=2048 ./node_modules/@angular/cli/bin/ng build --configuration=development-fr",
     "win-build-i18n:en": "node --max_old_space_size=2048 ./node_modules/@angular/cli/bin/ng build --configuration=development-en",