diff --git a/html/submit.php b/html/submit.php
index e8fcd15..d778415 100755
--- a/html/submit.php
+++ b/html/submit.php
@@ -101,7 +101,7 @@ if (isset($_REQUEST["username"]) && isset($_REQUEST["email"])) {
$message .= "
invalid email address. did you mean: " . htmlspecialchars($result["email"]) . "";
}
- if ($_REQUEST["sshkey"] == "" || substr($_REQUEST["sshkey"], 0, 4) !== "ssh-") {
+ if ($_REQUEST["sshkey"] == "" || (substr($_REQUEST["sshkey"], 0, 4) !== "ssh-" && substr($_REQUEST["sshkey"], 0, 3) !== "sk-") {
$message .= "ssh key required: please create one and submit the public key";
}