diff --git a/pkgs/os-specific/linux/kernel/builder.sh b/pkgs/os-specific/linux/kernel/builder.sh
index a48865443da..8b5b6729470 100644
--- a/pkgs/os-specific/linux/kernel/builder.sh
+++ b/pkgs/os-specific/linux/kernel/builder.sh
@@ -42,6 +42,7 @@ buildPhase() {
 
         cp -a arch/$arch/scripts $out/lib/modules/${version}/build || :
         cp -a arch/$arch/*lds $out/lib/modules/${version}/build || :
+        cp -a arch/$arch/Makefile.cpu $out/lib/modules/${version}/build/arch/$arch || :
         cp -a --parents arch/$arch/kernel/asm-offsets.s $out/lib/modules/${version}/build/arch/$arch/kernel || :
 
         # copy scripts