diff --git a/src/mainboard/samsung/lumpy/romstage.c b/src/mainboard/samsung/lumpy/romstage.c
index 57c6eea23f..5600cf616d 100644
--- a/src/mainboard/samsung/lumpy/romstage.c
+++ b/src/mainboard/samsung/lumpy/romstage.c
@@ -24,6 +24,7 @@
 #include <timestamp.h>
 #include <arch/io.h>
 #include <arch/romcc_io.h>
+#include <arch/byteorder.h>
 #include <device/pci_def.h>
 #include <device/pnp_def.h>
 #include <cpu/x86/lapic.h>