diff --git a/services/telegraf.nix b/services/telegraf.nix
index edb79a4a..aad883da 100644
--- a/services/telegraf.nix
+++ b/services/telegraf.nix
@@ -24,7 +24,7 @@
           token = "$TELEGRAF_TOKEN";
           organization = "default";
           bucket = "telegrafdb";
-          http_headers = "{\"Authorization\" = \"Token $TELEGRAF_TOKEN}\"}";
+          http_headers = '{"Authorization" = "Token $TELEGRAF_TOKEN}"}';
         };
       };
       inputs = {
@@ -34,7 +34,9 @@
           collect_cpu_time = false;
           report_active = false;
         };
-        disk = {};
+        disk = {
+          ignore_fs = '["tmpfs", "devtmpfs", "devfs", "iso9660", "overlay", "aufs", "squashfs"]';
+        };
         diskio = {};
         kernel = {};
         mem = {};