diff --git a/nix/configuration/configuration.nix b/nix/configuration/configuration.nix
index 4f08f77..3614b41 100644
--- a/nix/configuration/configuration.nix
+++ b/nix/configuration/configuration.nix
@@ -283,6 +283,20 @@ in
         (disableOptimizations "nototools") # Needs to use the same version of python as the zopfli package
       ];
 
+    hardware.firmware =
+      let
+        mt6639_bt_firmware = builtins.fetchurl {
+          url = "https://gitlab.com/kernel-firmware/linux-firmware/-/raw/77ad2a92acf2ac3e5ea47432b43d925ff99db909/mediatek/mt7927/BT_RAM_CODE_MT6639_2_1_hdr.bin";
+          sha256 = "0xmwzc7xdgywxps488hs6hqjsp4i665ingax530qb765l2cmr736";
+        };
+      in
+      [
+        (pkgs.runCommand "mediatek-custom-firmware" { } ''
+          mkdir -p $out/lib/firmware/mediatek
+          cp ${mt6639_bt_firmware} $out/lib/firmware/mediatek/BT_RAM_CODE_MT6639_2_1_hdr.bin
+        '')
+      ];
+
     # This option defines the first version of NixOS you have installed on this particular machine,
     # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
     #