diff --git a/pkgs/os-specific/linux/kernel/manual-config.nix b/pkgs/os-specific/linux/kernel/manual-config.nix
index d3fd87912fb..5d08ab05d97 100644
--- a/pkgs/os-specific/linux/kernel/manual-config.nix
+++ b/pkgs/os-specific/linux/kernel/manual-config.nix
@@ -119,7 +119,7 @@ let
         make $makeFlags "''${makeFlagsArray[@]}" oldconfig
         runHook postConfigure
 
-        make $makeFlags prepare
+        make $makeFlags "''${makeFlagsArray[@]}" prepare
         actualModDirVersion="$(cat $buildRoot/include/config/kernel.release)"
         if [ "$actualModDirVersion" != "${modDirVersion}" ]; then
           echo "Error: modDirVersion ${modDirVersion} specified in the Nix expression is wrong, it should be: $actualModDirVersion"