diff --git a/pkgs/quartus/quartus-unwrapped.nix b/pkgs/quartus/quartus-unwrapped.nix
index 3a2035a..7ef542f 100644
--- a/pkgs/quartus/quartus-unwrapped.nix
+++ b/pkgs/quartus/quartus-unwrapped.nix
@@ -6,7 +6,6 @@
   quartusSource,
   unstick,
   unzip,
-  writeText,
 }:
 
 let
@@ -53,7 +52,10 @@ let
     fetchurl {
       inherit name hash;
       url = "${quartusSource.baseUrl}/${name}";
-      curlOpts = "-H @${writeText "headers.txt" "User-Agent: Alterabot/1.0"}";
+      curlOptsList = [
+        "--user-agent"
+        "Alterabot/1.0"
+      ];
     };
 
   installers = map (