diff --git a/scipy-notebook/Dockerfile b/scipy-notebook/Dockerfile
index cd2910a5..63fc3391 100644
--- a/scipy-notebook/Dockerfile
+++ b/scipy-notebook/Dockerfile
@@ -60,8 +60,6 @@ USER root
 
 # Install Python 2 kernel spec globally to avoid permission problems when NB_UID
 # switching at runtime.
-RUN $CONDA_DIR/envs/python2/bin/python \
-    $CONDA_DIR/envs/python2/bin/ipython \
-    kernelspec install-self
+RUN $CONDA_DIR/envs/python2/bin/python -m ipykernel install
 
 USER jovyan