diff --git a/plat/st/common/stm32mp_fconf_io.c b/plat/st/common/stm32mp_fconf_io.c
index 6ed09d9..7a8cf78 100644
--- a/plat/st/common/stm32mp_fconf_io.c
+++ b/plat/st/common/stm32mp_fconf_io.c
@@ -76,6 +76,12 @@
 
 #define DEFAULT_UUID_NUMBER	U(7)
 
+#ifdef __aarch64__
+#define BL31_UUID_NUMBER	U(1)
+#else
+#define BL31_UUID_NUMBER	U(0)
+#endif
+
 #if TRUSTED_BOARD_BOOT
 #define TBBR_UUID_NUMBER	U(6)
 #else
@@ -83,6 +89,7 @@
 #endif
 
 #define FCONF_ST_IO_UUID_NUMBER	(DEFAULT_UUID_NUMBER + \
+				 BL31_UUID_NUMBER + \
 				 TBBR_UUID_NUMBER)
 
 static io_uuid_spec_t fconf_stm32mp_uuids[FCONF_ST_IO_UUID_NUMBER];
@@ -96,6 +103,9 @@
 /* image id to property name table */
 static const struct policies_load_info load_info[FCONF_ST_IO_UUID_NUMBER] = {
 	{FW_CONFIG_ID, "fw_cfg_uuid"},
+#ifdef __aarch64__
+	{BL31_IMAGE_ID, "bl31_uuid"},
+#endif
 	{BL32_IMAGE_ID, "bl32_uuid"},
 	{BL32_EXTRA1_IMAGE_ID, "bl32_extra1_uuid"},
 	{BL32_EXTRA2_IMAGE_ID, "bl32_extra2_uuid"},