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-rwxr-xr-xcli/do-install.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/cli/do-install.php b/cli/do-install.php
index c9fa3f5ab..c2f5b286d 100755
--- a/cli/do-install.php
+++ b/cli/do-install.php
@@ -48,7 +48,7 @@ if ($requirements['all'] !== 'ok') {
fail($message);
}
-if (!ctype_alnum($options['default_user'])) {
+if (!FreshRSS_user_Controller::checkUsername($options['default_user'])) {
fail('FreshRSS invalid default username (must be ASCII alphanumeric): ' . $options['default_user']);
}