diff --git a/services/telegraf.nix b/services/telegraf.nix
index f9d5baae..9d9254ae 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\"d]";
         };
         diskio = {};
         kernel = {};