diff --git a/homes/jacek/default.nix b/homes/jacek/default.nix
index 5b0ca7d..c8f8315 100644
--- a/homes/jacek/default.nix
+++ b/homes/jacek/default.nix
@@ -24,8 +24,6 @@
             };
         };
 
-        nixpkgs.overlays = [ inputs.nur.overlay ];
-
         home = {
             username = "jacek";
             homeDirectory = "/home/jacek";
diff --git a/homes/jacek/gui/firefox/default.nix b/homes/jacek/gui/firefox/default.nix
index ae804cd..4d62cfc 100644
--- a/homes/jacek/gui/firefox/default.nix
+++ b/homes/jacek/gui/firefox/default.nix
@@ -33,7 +33,7 @@
                 version = "20.5.22.1";
                 addonId = "{a9226ee9-7998-47bd-b72e-a1b56df7f77b}";
                 url = "https://addons.mozilla.org/firefox/downloads/file/3585060/yomichan-20.5.22.1.xpi";
-                sha256 = "";
+                sha256 = "sha256-/icvPD/nCJYS31owfYMD25QzFjsxAqapy/UAehhxsy8=";
             };
         };
     in {
diff --git a/hosts/niks/configuration.nix b/hosts/niks/configuration.nix
index 5245a15..9368864 100644
--- a/hosts/niks/configuration.nix
+++ b/hosts/niks/configuration.nix
@@ -21,6 +21,7 @@ let
 in
 {
     nixpkgs.config.allowUnfree = true;
+    nixpkgs.overlays = [ inputs.nur.overlay ];
 
     boot.loader.systemd-boot.enable = true;
     boot.loader.efi.canTouchEfiVariables = true;