diff --git a/src/northbridge/intel/haswell/native_raminit/Makefile.inc b/src/northbridge/intel/haswell/native_raminit/Makefile.inc
index 90af951..ebf7abc 100644
--- a/src/northbridge/intel/haswell/native_raminit/Makefile.inc
+++ b/src/northbridge/intel/haswell/native_raminit/Makefile.inc
@@ -2,3 +2,4 @@
 
 romstage-y += raminit_main.c
 romstage-y += raminit_native.c
+romstage-y += spd_bitmunching.c