diff --git a/include/plat/common/platform.h b/include/plat/common/platform.h
index 3fa63f5..9a61b50 100644
--- a/include/plat/common/platform.h
+++ b/include/plat/common/platform.h
@@ -124,12 +124,22 @@
 
 #if MEASURED_BOOT
 int plat_mboot_measure_image(unsigned int image_id, image_info_t *image_data);
+int plat_mboot_measure_critical_data(unsigned int critical_data_id,
+				     const void *base,
+				     size_t size);
 #else
 static inline int plat_mboot_measure_image(unsigned int image_id __unused,
 					   image_info_t *image_data __unused)
 {
 	return 0;
 }
+static inline int plat_mboot_measure_critical_data(
+					unsigned int critical_data_id __unused,
+					const void *base __unused,
+					size_t size __unused)
+{
+	return 0;
+}
 #endif /* MEASURED_BOOT */
 
 /*******************************************************************************