diff --git a/jupyterhub/vim/Dockerfile b/jupyterhub/vim/Dockerfile
index b825dd9e90fa55312f8ba0b42f135c876d5abd06..7db424368d55bba8636ddb1f7477d50783029267 100755
--- a/jupyterhub/vim/Dockerfile
+++ b/jupyterhub/vim/Dockerfile
@@ -4,4 +4,4 @@ FROM git.imp.fu-berlin.de:5000/bioroboticslab/robofish/docker/jupyterhub
 LABEL maintainer="Moritz Maxeiner <moritz.maxeiner@fu-berlin.de>"
 LABEL authors="Moritz Maxeiner <moritz.maxeiner@fu-berlin.de>"
 
-RUN python${JUPYTERHUB_PYTHON_VERSION} -m jupyter labextension install @axlair/jupyterlab_vim
+RUN python${PYTHON_VERSION} -m jupyter labextension install @axlair/jupyterlab_vim