diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 804ffb269d004a1688e6fbd5605ce63d6c8ab848..0c1a0401995e26f73c5c82535066f131f90f7b37 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -20,7 +20,7 @@ build_development:
   script:
     - export TAG=dev
     - export NGINX_PORT=8081
-    - docker-compose build --build-arg build-conf=dev nginx-app 
+    - docker-compose build --build-arg conf=dev nginx-app 
     - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
     - docker-compose push
 
@@ -33,7 +33,7 @@ build_release:
   script:
     - export TAG=$(echo $CI_COMMIT_TAG | sed 's/v//g')
     - export NGINX_PORT=8081
-    - docker-compose build --build-arg build-conf=prod nginx-app
+    - docker-compose build --build-arg conf=prod nginx-app
     - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
     - docker-compose push
 
diff --git a/Dockerfile b/Dockerfile
index eca92cca9713455b5effc1d1cc02420637ba0c7e..0debac449e764f81f917331cc26962d92a192267 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,10 +12,10 @@ COPY . /app
 # Launch postinstall script (to include crypto module)
 RUN npm run postinstall
 
-ARG build-conf
+ARG conf
 
 # Building the Angular app /dist i18n
-RUN npm run build-i18n:${build-conf}
+RUN npm run build-i18n:${conf}
 
 # Stage 1, based on Nginx, to have only the compiled app
 FROM nginx