diff --git a/pkgs/applications/networking/cluster/kube3d/default.nix b/pkgs/applications/networking/cluster/kube3d/default.nix
index e565657a5cbd..3652405194f5 100644
--- a/pkgs/applications/networking/cluster/kube3d/default.nix
+++ b/pkgs/applications/networking/cluster/kube3d/default.nix
@@ -17,10 +17,10 @@ buildGoModule rec {
 
   excludedPackages = "\\(tools\\|docgen\\)";
 
-  preBuild = let t = "github.com/rancher/k3d/v4/version"; in
-    ''
-      buildFlagsArray+=("-ldflags" "-s -w -X ${t}.Version=v${version} -X ${t}.K3sVersion=v${k3sVersion}")
-    '';
+  ldflags = let t = "github.com/rancher/k3d/v4/version"; in
+    [
+      "-s" "-w" "-X ${t}.Version=v${version}" "-X ${t}.K3sVersion=v${k3sVersion}"
+    ];
 
   doCheck = false;