diff --git a/include/plat/arm/board/common/board_css_def.h b/include/plat/arm/board/common/board_css_def.h
index 65e3d32..4b5e84d 100644
--- a/include/plat/arm/board/common/board_css_def.h
+++ b/include/plat/arm/board/common/board_css_def.h
@@ -33,6 +33,7 @@
 
 #include <common_def.h>
 #include <soc_css_def.h>
+#include <utils.h>
 #include <v2m_def.h>
 
 /*
diff --git a/include/plat/arm/common/arm_def.h b/include/plat/arm/common/arm_def.h
index 8ce718a..43e0eb8 100644
--- a/include/plat/arm/common/arm_def.h
+++ b/include/plat/arm/common/arm_def.h
@@ -34,6 +34,7 @@
 #include <common_def.h>
 #include <platform_def.h>
 #include <tbbr_img_def.h>
+#include <utils.h>
 #include <xlat_tables_defs.h>
 
 
diff --git a/include/plat/arm/soc/common/soc_css_def.h b/include/plat/arm/soc/common/soc_css_def.h
index e83144e..3b4cc79 100644
--- a/include/plat/arm/soc/common/soc_css_def.h
+++ b/include/plat/arm/soc/common/soc_css_def.h
@@ -32,6 +32,7 @@
 #define __SOC_CSS_DEF_H__
 
 #include <common_def.h>
+#include <utils.h>
 
 
 /*