diff --git a/server/core/test/test_utils.hh b/server/core/test/test_utils.hh
index 532d9e3b5..0e179bdbf 100644
--- a/server/core/test/test_utils.hh
+++ b/server/core/test/test_utils.hh
@@ -112,4 +112,5 @@ void init_test_env(char* __attribute((unused))path = nullptr, uint32_t init_type
     preload_module("mariadbbackend", "server/modules/protocol/MySQL/mariadbbackend/", MODULE_PROTOCOL);
     preload_module("readconnroute", "server/modules/routing/readconnroute/", MODULE_ROUTER);
     preload_module("mariadbauth", "server/modules/authenticator/MariaDBAuth/", MODULE_AUTHENTICATOR);
+    preload_module("mariadbbackendauth", "server/modules/authenticator/MariaDBBackendAuth/", MODULE_AUTHENTICATOR);
 }