diff --git a/README.md b/README.md
index b73c095..789385e 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,7 @@ my $STORAGE_ROOT = "/var/www/storage"; # must be writable by httpd user
 my $MAX_UPLOAD   = 1073741824;         # 1 GB
 my $SCRIPT_NAME  = $ENV{SCRIPT_NAME} || "/cgi-bin/cloudvista.cgi";
 my $COOKIE_DAYS  = 30;
+MY $REGISTER_EN  = "true";
 ```
 
 ## Requirements
@@ -45,10 +46,10 @@ my $COOKIE_DAYS  = 30;
 ## Usage
 
 Users can:
-- Register a new account with username and password
+- Register a new account with username and password if registration is enabled
 - Login to access their file storage
 - Upload files (up to 1GB each)
 - Download their files
 - Delete individual files
 - Change their password
-- Delete their account and all files
\ No newline at end of file
+- Delete their account and all files
diff --git a/cloudvista.cgi b/cloudvista.cgi
index 5b0f7cd..6de9ed8 100755
--- a/cloudvista.cgi
+++ b/cloudvista.cgi
@@ -27,6 +27,7 @@ my $STORAGE_ROOT = "/var/www/storage"; # must be writable by httpd user
 my $MAX_UPLOAD   = 1073741824;         # 1 GB
 my $SCRIPT_NAME  = $ENV{SCRIPT_NAME} || "/cgi-bin/cloudvista.cgi";
 my $COOKIE_DAYS  = 30;
+my $REGISTER_EN  = "true";
 ##############################################################
 
 $CGI::POST_MAX        = $MAX_UPLOAD;
@@ -293,7 +294,7 @@ if ($action eq 'register') {
     }
     elsif ($pass ne $confirm)          { $err = 'passwords do not match.';
     }
-    else {
+    elsif ($REGISTER_EN eq "true") {
         my $uh   = md5_hex($user);
         my $ph   = md5_hex($pass);
         my $udir = "$STORAGE_ROOT/$uh";
@@ -307,6 +308,8 @@ if ($action eq 'register') {
         else {
             send_redirect($SCRIPT_NAME, make_login_cookies($uh, $ph));
         }
+    } else {
+	$err = 'Registration is disabled.';
     }
 
     send_page_header();