diff --git a/services/monitoring/grafana.mod.nix b/services/monitoring/grafana.mod.nix
index 37d49ee..04471ba 100644
--- a/services/monitoring/grafana.mod.nix
+++ b/services/monitoring/grafana.mod.nix
@@ -15,8 +15,8 @@
           # database = {};
           # paths = {};
           security = {
-            admin_user = "$__file" + "{${config.sops.secrets.grafana_admin_account.path}}";
-            admin_password = "$__file" + "{${config.sops.secrets.grafana_admin_pass.path}}";
+            admin_user = builtins.concatStringsSep "" ["$__file" "{${config.sops.secrets.grafana_admin_account.path}}"];
+            admin_password = builtins.concatStringsSep "" ["$__file" "{${config.sops.secrets.grafana_admin_pass.path}}"];
           };
           server = {
             root_url = "https://grf.collective-conciousness.monster";