diff --git a/Dockerfile b/Dockerfile
index 4a1ef28c8e4919951e0871febf36ca288bdc1974..ca96b8463eca2ea471512d56f72355be318e43e7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,4 @@
 FROM registry.git.autistici.org/ai3/docker/s6-base:master AS base
-
 RUN apt-get -q update && \
     env DEBIAN_FRONTEND=noninteractive apt-get -qy install --no-install-recommends \
         python3-flask python3-sqlalchemy python3-flask-sqlalchemy python3-cheroot \
@@ -8,17 +7,12 @@ RUN apt-get -q update && \
     rm -fr /var/lib/apt/lists/*
 
 FROM base AS build
-
 ADD . /src
 WORKDIR /src
 RUN python3 setup.py bdist_wheel
 
 FROM base
-
 COPY --from=build /src/dist/*.whl /tmp/wheels/
 COPY conf/ /etc/
 COPY feedbackloop.sh /usr/local/bin/feedbackloop
-
 RUN cd /tmp/wheels && pip3 install *.whl && rm -fr /tmp/wheels
-
-ENV FLASK_APP=feedbackloop.main:create_app
diff --git a/feedbackloop.sh b/feedbackloop.sh
index 1bb029b768c6c2259a36bf529842cdb5ce143742..e127008802d4414653b163c7dd6b58fed63dff22 100755
--- a/feedbackloop.sh
+++ b/feedbackloop.sh
@@ -1,3 +1,5 @@
 #!/bin/sh
 
+export FLASK_APP=feedbackloop.main:create_app
+
 exec flask "$@"
diff --git a/feedbackloop/main.py b/feedbackloop/main.py
index 257d9392b48af2c4d1d6d2fb42bb7fa57013d18d..0ac88cccb328e4f4d6e96e065cd5af3047b3375f 100644
--- a/feedbackloop/main.py
+++ b/feedbackloop/main.py
@@ -45,7 +45,7 @@ def expire(days):
     with app.app_context():
         FeedbackEntry.query.filter(
             FeedbackEntry.timestamp < cutoff
-            ).delete()
+        ).delete()
         db.session.commit()