diff --git a/Makefile.inc b/Makefile.inc
index 3eaabaf..3e21bc1 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -80,6 +80,7 @@
 #######################################################################
 # root source directories of coreboot
 subdirs-y := src/lib src/commonlib/ src/console src/device src/acpi src/superio/common
+subdirs-$(CONFIG_EC_ACPI) += src/ec/intel
 subdirs-y += src/ec/acpi $(wildcard src/ec/*/*) $(wildcard src/southbridge/*/*)
 subdirs-y += $(wildcard src/soc/*) $(wildcard src/soc/*/common) $(filter-out $(wildcard src/soc/*/common),$(wildcard src/soc/*/*))
 subdirs-y += $(wildcard src/northbridge/*/*)