diff --git a/signup/signup-handler.php b/signup/signup-handler.php
index 2412a26..c40e1e9 100644
--- a/signup/signup-handler.php
+++ b/signup/signup-handler.php
@@ -205,6 +205,8 @@ $makeuser
             // temp. add to forbidden to prevent double signups (cleanup after user creation)
             file_put_contents("/var/signups_current", $name.PHP_EOL, FILE_APPEND);
             file_put_contents("/var/signups", $makeuser.PHP_EOL, FILE_APPEND);
+            // clear form fields
+            $_REQUEST["email"] = $_REQUEST["username"] = $_REQUEST["sshkey"] = $_REQUEST["interest"] = "";
         } else {
             echo '<div class="alert alert-danger" role="alert">
                 something went wrong... please send an email to <a href="mailto:sudoers@tilde.team">sudoers@tilde.team</a> with details of what happened