diff --git a/Dockerfile b/Dockerfile
index 1367cae..88f3046 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,5 +11,5 @@ RUN \
   fix-permissions $CONDA_DIR && \
   fix-permissions /home/$NB_USER 
 
-CMD ["start-notebook.sh", "--NotebookApp.token=''" "--gateway-url" "${GATEWAY}"]
+CMD ["start-notebook.sh", "--NotebookApp.token=''", "--gateway-url", "${GATEWAY}"]