diff --git a/src/northbridge/intel/i945/Makefile.inc b/src/northbridge/intel/i945/Makefile.inc
index 1dd8d11..7d7cb5d 100644
--- a/src/northbridge/intel/i945/Makefile.inc
+++ b/src/northbridge/intel/i945/Makefile.inc
@@ -26,3 +26,5 @@
 romstage-y += early_init.c
 romstage-y += errata.c
 romstage-y += debug.c
+
+smm-y += udelay.c