diff --git a/include/maxscale/adminusers.h.in b/include/maxscale/adminusers.h.in
index 79a6157c4..bbd721c4a 100644
--- a/include/maxscale/adminusers.h.in
+++ b/include/maxscale/adminusers.h.in
@@ -81,6 +81,7 @@ const char* admin_add_inet_user(const char *uname, const char *password);
 const char* admin_remove_inet_user(const char *uname, const char *password);
 bool admin_inet_user_exists(const char *uname);
 bool admin_verify_inet_user(const char *uname, const char *password);
+bool admin_is_admin_user(const char* username);
 
 /**
  * @brief Convert all admin users to JSON