diff --git a/src/mainboard/apple/macbook21/romstage.c b/src/mainboard/apple/macbook21/romstage.c
index 7bec26bd1c..8d3fc67252 100644
--- a/src/mainboard/apple/macbook21/romstage.c
+++ b/src/mainboard/apple/macbook21/romstage.c
@@ -27,6 +27,7 @@
 #include <arch/io.h>
 #include <device/pci_def.h>
 #include <device/pnp_def.h>
+#include <cpu/intel/romstage.h>
 #include <cpu/x86/lapic.h>
 #include <lib.h>
 #include <cbmem.h>