diff --git a/PVE/API2/AccessControl.pm b/PVE/API2/AccessControl.pm
index dfbdfc6..9d2da8d 100644
--- a/PVE/API2/AccessControl.pm
+++ b/PVE/API2/AccessControl.pm
@@ -19,6 +19,7 @@ use PVE::API2::User;
 use PVE::API2::Group;
 use PVE::API2::Role;
 use PVE::API2::ACL;
+use PVE::Auth::Plugin;
 use PVE::OTP;
 use PVE::Tools;