diff --git a/modules/rtl.nix b/modules/rtl.nix
index 19bc118..aa6c5bf 100644
--- a/modules/rtl.nix
+++ b/modules/rtl.nix
@@ -191,6 +191,7 @@ in {
                  optional cfg.nodes.lnd.enable "lnd.service";
       after = requires;
       environment.RTL_CONFIG_PATH = cfg.dataDir;
+      environment.DB_DIRECTORY_PATH = cfg.dataDir;
       serviceConfig = nbLib.defaultHardening // {
         ExecStartPre = [
           (nbLib.script "rtl-setup-config" ''