diff --git a/pkgs/os-specific/linux/kernel/manual-config.nix b/pkgs/os-specific/linux/kernel/manual-config.nix
index c57082c93305..963e10a59645 100644
--- a/pkgs/os-specific/linux/kernel/manual-config.nix
+++ b/pkgs/os-specific/linux/kernel/manual-config.nix
@@ -125,7 +125,8 @@ let
         mkdir -p $out/lib/firmware
       '') + (if (platform ? kernelDTB && platform.kernelDTB) then ''
  	make $makeFlags "''${makeFlagsArray[@]}" dtbs
-        cp $buildRoot/arch/$karch/boot/dts/*dtb $out
+        mkdir -p $out/dtbs
+        cp $buildRoot/arch/$karch/boot/dts/*.dtb $out/dtbs
       '' else "") + (if isModular then ''
         make modules_install $makeFlags "''${makeFlagsArray[@]}" \
           $installFlags "''${installFlagsArray[@]}"