diff --git a/Dockerfile b/Dockerfile
index cf4d4e6..fb795c0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,4 +14,5 @@ RUN mkdir /root/.vnc/ \
 EXPOSE 5901
 COPY xstartup /root/.vnc/
 COPY vnc.sh /opt/
-CMD ["/opt/vnc.sh"]
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+RUN chmod +x /root/.vnc/xstartup /etc/X11/xinit/xinitrc
+ENTRYPOINT ["/opt/vnc.sh"]
\ No newline at end of file