diff --git a/pkgs/os-specific/linux/alsa-firmware/default.nix b/pkgs/os-specific/linux/alsa-firmware/default.nix
index f1d73ac245a4..9802992434ec 100644
--- a/pkgs/os-specific/linux/alsa-firmware/default.nix
+++ b/pkgs/os-specific/linux/alsa-firmware/default.nix
@@ -22,11 +22,11 @@ stdenv.mkDerivation rec {
   postInstall = ''
     # These are lifted from the Arch PKGBUILD
     # remove files which conflicts with linux-firmware
-    rm -rf $out/usr/lib/firmware/{ct{efx,speq}.bin,ess,korg,sb16,yamaha}
+    rm -rf $out/lib/firmware/{ct{efx,speq}.bin,ess,korg,sb16,yamaha}
     # remove broken symlinks (broken upstream)
-    rm -rf $out/usr/lib/firmware/turtlebeach
+    rm -rf $out/lib/firmware/turtlebeach
     # remove empty dir
-    rm -rf $out/usr/bin
+    rm -rf $out/bin
   '';
 
   meta = {