diff --git a/bl1/bl1_main.c b/bl1/bl1_main.c
index da81839..6028f4f 100644
--- a/bl1/bl1_main.c
+++ b/bl1/bl1_main.c
@@ -35,6 +35,7 @@
 #include <bl1.h>
 #include <debug.h>
 #include <platform.h>
+#include <platform_def.h>
 #include <stdio.h>
 #include "bl1_private.h"