diff --git a/Dockerfile b/Dockerfile
old mode 100644
new mode 100755
index 2e89410..d8f4159
--- a/Dockerfile
+++ b/Dockerfile
@@ -78,7 +78,7 @@ COPY update_ssmtp.sh /usr/local/bin/update_ssmtp.sh
 
 RUN chown www-data /etc/ssmtp /etc/ssmtp/ssmtp.conf && \
   chmod +x /usr/local/bin/update_ssmtp.sh /usr/local/bin/start.sh && \
-  mkdir -p /var/www
+  mkdir -p /var/www && chown www-data /var/www
 
 # Work around an aufs bug related to directory permissions:
 RUN mkdir -p /tmp && \