diff --git a/Makefile b/Makefile
index a4ac0133f7cd..446acb6ba967 100644
--- a/Makefile
+++ b/Makefile
@@ -644,8 +644,9 @@ ifdef building_out_of_srctree
 
 quiet_cmd_makefile = GEN     Makefile
       cmd_makefile = { \
-	echo "\# Automatically generated by $(srctree)/Makefile: don't edit"; \
-	echo "include $(srctree)/Makefile"; \
+	echo "\# Automatically generated by $(abs_srctree)/Makefile: don't edit"; \
+	echo "export KBUILD_OUTPUT = $(CURDIR)"; \
+	echo "include $(abs_srctree)/Makefile"; \
 	} > Makefile
 
 outputmakefile: