diff --git a/services/telegraf.nix b/services/telegraf.nix
index eb63c572..eadf7b58 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 = {