diff --git a/src/cpu/Makefile.inc b/src/cpu/Makefile.inc
index 60be3edf51..4415190ed4 100644
--- a/src/cpu/Makefile.inc
+++ b/src/cpu/Makefile.inc
@@ -2,6 +2,4 @@ subdirs-y += amd
 subdirs-y += intel
 subdirs-y += via
 subdirs-y += emulation
-#input ppc
-#input simple_init
-#input x86
+subdirs-y += x86
diff --git a/src/cpu/x86/Makefile.inc b/src/cpu/x86/Makefile.inc
new file mode 100644
index 0000000000..1dc4d5600a
--- /dev/null
+++ b/src/cpu/x86/Makefile.inc
@@ -0,0 +1 @@
+subdirs-y += smm