diff --git a/nixos/tests/gotify-server.nix b/nixos/tests/gotify-server.nix
index c6e00686aed..c0b8ba43548 100644
--- a/nixos/tests/gotify-server.nix
+++ b/nixos/tests/gotify-server.nix
@@ -41,5 +41,10 @@ import ./make-test-python.nix ({ pkgs, lib, ...} : {
     )
 
     assert title == "Gotify"
+
+    # Ensure that the UI responds with a successfuly code and that the
+    # response is not empty
+    result = machine.succeed("curl -fsS localhost:3000")
+    assert result, "HTTP response from localhost:3000 must not be empty!"
   '';
 })
diff --git a/pkgs/servers/gotify/default.nix b/pkgs/servers/gotify/default.nix
index 88617d0cd8b..4360ac95b0b 100644
--- a/pkgs/servers/gotify/default.nix
+++ b/pkgs/servers/gotify/default.nix
@@ -3,7 +3,6 @@
 , lib
 , fetchFromGitHub
 , buildGoModule
-, packr
 , sqlite
 , callPackage
 }:
@@ -32,12 +31,10 @@ buildGoModule rec {
 
   buildInputs = [ sqlite ];
 
-  nativeBuildInputs = [ packr ];
-
   ui = callPackage ./ui.nix { };
 
   preBuild = ''
-    cp -r ${ui}/libexec/gotify-ui/deps/gotify-ui/build ui/build && packr
+    cp -r ${ui}/libexec/gotify-ui/deps/gotify-ui/build ui/build && go run hack/packr/packr.go
   '';
 
   passthru = {