diff --git a/Dockerfile b/Dockerfile
index ec15ae7f43e5e55cfa9d7379c69a12ba4059bad0..188f09f8e84d626dd419073cc2b33c7e78cc17c9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ RUN pip install -r requirements.txt && \
 
 ADD . /code/
 
-RUN DATABASE_URL=none python manage.py collectstatic --noinput
+RUN DATABASE_URL=none SECRET_KEY=xxx python manage.py collectstatic --noinput
 
 COPY conf/supervisor.conf /etc/supervisor/conf.d/supervisor.conf
 COPY conf/nginx.conf /etc/nginx/conf.d/openlobby-server.conf
diff --git a/openlobby/settings.py b/openlobby/settings.py
index ea44c1870876fc13569e6b824cd5b6be195f2fa5..034304d16162f9f4521bef39f031da6570ebc8dc 100644
--- a/openlobby/settings.py
+++ b/openlobby/settings.py
@@ -8,7 +8,7 @@ BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 DEBUG = 'DEBUG' in os.environ
 
 # SECURITY WARNING: keep the secret key used in production secret!
-SECRET_KEY = os.environ.get('SECRET_KEY','very-secret-key')
+SECRET_KEY = os.environ.get('SECRET_KEY')
 if not SECRET_KEY:
     if DEBUG:
         SECRET_KEY = 'not-secret-at-all'