diff --git a/docker/Dockerfile.dev b/docker/Dockerfile.dev
index c306b12c6a1b33189e028e6f31337cd68fc1fa59..ce6c8c7488109d9ca8503a8816b01cd875959304 100644
--- a/docker/Dockerfile.dev
+++ b/docker/Dockerfile.dev
@@ -11,8 +11,10 @@ RUN pip install --trusted-host pypi.python.org -r requirements.txt
 
 # Run flask
 EXPOSE 5000
-ENV FLASK_APP=app/labelsTower.py
 ENV FLASK_ENV=development
 ENV LC_ALL=C.UTF-8
 ENV LANG=C.UTF-8
+
+ENV LABELSTOWER_ENV="app.config.ConfigVoiture"
+
 CMD [ "flask", "run", "--reload", "--host", "0.0.0.0" ]
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