diff --git a/wporg-two-factor.php b/wporg-two-factor.php
index 995663d9..8f12b093 100644
--- a/wporg-two-factor.php
+++ b/wporg-two-factor.php
@@ -41,6 +41,14 @@ function is_2fa_beta_tester() : bool {
 function load_webauthn_plugin() {
 	global $wpdb;
 
+	// Bail if the WebAuthn plugin is unavailable.
+	if ( ! class_exists( '\WildWolf\WordPress\TwoFactorWebAuthn\Plugin' ) ) {
+		if ( 'production' === wp_get_environment_type() ) {
+			trigger_error( 'Two Factor WebAuthn plugin missing.', E_USER_WARNING );
+		}
+		return;
+	}
+	
 	$webauthn = WebAuthn_Plugin::instance();
 	$webauthn->init();