diff --git a/pkgs/os-specific/linux/kernel/builder.sh b/pkgs/os-specific/linux/kernel/builder.sh
index 5a1aa1ea286..dfdb4c92fc5 100644
--- a/pkgs/os-specific/linux/kernel/builder.sh
+++ b/pkgs/os-specific/linux/kernel/builder.sh
@@ -2,6 +2,8 @@
 
 buildPhase() {
 	cp $config .config
+	echo "export INSTALL_PATH=$out" >> Makefile
+	export INSTALL_MOD_PATH=$out
 	make
 }