diff --git a/nixos/features/telemetry/nginx.nix b/nixos/features/telemetry/nginx.nix
index ce7b47d..50e3688 100644
--- a/nixos/features/telemetry/nginx.nix
+++ b/nixos/features/telemetry/nginx.nix
@@ -9,7 +9,7 @@ in {
     settings = {
       namespaces = [{
         inherit format;
-        
+
         name = "nginx";
         source.files = ["/var/log/nginx/access.log"];
       }];
@@ -18,7 +18,7 @@ in {
 
   services.nginx.commonHttpConfig = ''
     access_log /var/log/nginx/access.log;
-    log_format combined ${format};
+    log_format combined "${format}";
   '';
 
   networking.firewall.allowedTCPPorts = [ 14201 ];