diff --git a/Makefile.inc b/Makefile.inc
index 882673b..297f7b1 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -80,7 +80,7 @@
 subdirs-y += src/ec/acpi $(wildcard src/ec/*/*) $(wildcard src/southbridge/*/*)
 subdirs-y += $(wildcard src/soc/*/*) $(wildcard src/northbridge/*/*)
 subdirs-y += src/superio
-subdirs-y += $(wildcard src/drivers/*) $(wildcard src/drivers/*/*)
+subdirs-y += $(wildcard src/drivers/*) $(wildcard src/drivers/*/*) $(wildcard src/drivers/*/*/*)
 subdirs-y += src/cpu src/vendorcode
 subdirs-y += util/cbfstool util/sconfig util/nvramtool util/pgtblgen util/amdfwtool
 subdirs-y += util/futility util/marvell util/bincfg util/supermicro