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-rw-r--r--pkgs/os-specific/linux/kernel/manual-config.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/os-specific/linux/kernel/manual-config.nix b/pkgs/os-specific/linux/kernel/manual-config.nix
index c8910f8ed06..67e8f065539 100644
--- a/pkgs/os-specific/linux/kernel/manual-config.nix
+++ b/pkgs/os-specific/linux/kernel/manual-config.nix
@@ -144,7 +144,7 @@ let
         # !!! No documentation on how much of the source tree must be kept
         # If/when kernel builds fail due to missing files, you can undelete
         # them here
-        ls -A | grep -v Makefile | xargs rm -fR
+        find -empty -type d -delete
       '' else optionalString installsFirmware ''
         make firmware_install $makeFlags "''${makeFlagsArray[@]}" \
           $installFlags "''${installFlagsArray[@]}"