diff --git a/services/telegraf.nix b/services/telegraf.nix
index f433806a..0849b53c 100644
--- a/services/telegraf.nix
+++ b/services/telegraf.nix
@@ -35,7 +35,7 @@
           report_active = false;
         };
         disk = {
-          ignore_fs = "[\"tmpfs\",\"devtmpfs\",\"devfs\",\"iso9660\",\"overlay\",\"aufs\",\"squashfs\"]";
+          ignore_fs = [ "tmpfs", "devtmpfs", "devfs", "iso9660", "overlay", "aufs", "squashfs" ];
         };
         diskio = {};
         kernel = {};