diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c91474266c..eed0b5ed55 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,6 @@ services:
   - mysql:latest
   - postgres
 before_script:
-  - export LANG=en_US.UTF-8
   - apt-get update -qq
   - apt-get install -qq python-dev python-pip gcc gnupg1 tesseract-ocr tesseract-ocr-deu ghostscript libjpeg-dev libpng-dev libtiff-dev poppler-utils libreoffice
 variables:
@@ -18,7 +17,7 @@ test:mysql:
   - pip install mysql-python
   - apt-get install -qq mysql-client
   - mysql -h"$MYSQL_PORT_3306_TCP_ADDR" -P"$MYSQL_PORT_3306_TCP_PORT" -uroot -p"$MYSQL_ENV_MYSQL_ROOT_PASSWORD" -e "ALTER DATABASE $MYSQL_DATABASE CHARACTER SET utf8 COLLATE utf8_unicode_ci;"
-  - coverage run manage.py runtests --settings=mayan.settings.testing.gitlab-ci.db_mysql --nomigrations
+  - LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8 coverage run manage.py runtests --settings=mayan.settings.testing.gitlab-ci.db_mysql --nomigrations
   - bash <(curl https://raw.githubusercontent.com/codecov/codecov-bash/master/codecov) -t $CODECOV_TOKEN
   tags:
     - mysql
@@ -27,12 +26,12 @@ test:postgres:
   - apt-get install -qq libpq-dev
   - pip install -r requirements/testing.txt
   - pip install psycopg2
-  - coverage run manage.py runtests --settings=mayan.settings.testing.gitlab-ci.db_postgres --nomigrations
+  - LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8 coverage run manage.py runtests --settings=mayan.settings.testing.gitlab-ci.db_postgres --nomigrations
   - bash <(curl https://raw.githubusercontent.com/codecov/codecov-bash/master/codecov) -t $CODECOV_TOKEN
   tags:
     - postgres
 test:sqlite:
   script:
   - pip install -r requirements/testing.txt
-  - coverage run manage.py runtests --settings=mayan.settings.testing.gitlab-ci --nomigrations
+  - LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8 coverage run manage.py runtests --settings=mayan.settings.testing.gitlab-ci --nomigrations
   - bash <(curl https://raw.githubusercontent.com/codecov/codecov-bash/master/codecov) -t $CODECOV_TOKEN