diff --git a/Dockerfile b/Dockerfile
index c8c46dc..b6a2f86 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 FROM jupyter/datascience-notebook
 USER root
-echo "c.NotebookApp.password = u'sha1:143c02a61a4a:8ea704f689c1b8bfa78dc1e65d363d287eda19e1'" >> ~/.jupyter/jupyter_notebook_config.py
+RUN echo "c.NotebookApp.password = u'sha1:143c02a61a4a:8ea704f689c1b8bfa78dc1e65d363d287eda19e1'" >> ~/.jupyter/jupyter_notebook_config.py
 USER jovyan
 RUN pip install seaborn