diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index 54c5e75..f9053a8 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -375,6 +375,10 @@
     $(info Including ${RSS_MEASURED_BOOT_MK})
     include ${RSS_MEASURED_BOOT_MK}
 
+    ifneq (${MBOOT_RSS_HASH_ALG}, sha256)
+        $(eval $(call add_define,TF_MBEDTLS_MBOOT_USE_SHA512))
+    endif
+
     BL1_SOURCES		+=	${MEASURED_BOOT_SOURCES}
     BL2_SOURCES		+=	${MEASURED_BOOT_SOURCES}
 endif