diff --git a/webpython/Dockerfile b/webpython/Dockerfile
index 76eae9dc..54d6d4ad 100644
--- a/webpython/Dockerfile
+++ b/webpython/Dockerfile
@@ -2,10 +2,11 @@ FROM ubuntu:14.04
 MAINTAINER "Martin v. Löwis"
 RUN locale-gen en_US.UTF-8
 ENV LANG en_US.UTF-8
+ENV PYTHONPATH $PYTHONPATH:/usr/lib/python3.4:/workspace
+ENV PATH $PATH:/usr/lib/python3.4
 ADD assess.py /usr/lib/python3.4/assess.py
 ADD webpython.py /usr/lib/python3.4/webpython.py
 RUN rm /usr/lib/python3.4/turtle.py
 ADD turtle.py /usr/lib/python3.4/turtle.py
 RUN adduser --disabled-password --gecos Python python
-USER python
-WORKDIR /usr/lib/python3.4
+USER python
\ No newline at end of file