diff --git a/services/telegraf.nix b/services/telegraf.nix
index dde5ef33..e620ec8e 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 = {};