diff --git a/Dockerfile b/Dockerfile
index 1fbd4bf..448ebd5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -49,6 +49,6 @@ RUN echo 'if [ -f "/guide/$USER.txt" ]; then cat "/guide/$USER.txt"; fi' >> /etc
 
 
 
-EXPOSE 2220
+EXPOSE 22
 
 CMD ["/usr/sbin/sshd","-D"]