diff --git a/util/stm32mon.c b/util/stm32mon.c
index f5952c2fe7..b9896a00c0 100644
--- a/util/stm32mon.c
+++ b/util/stm32mon.c
@@ -93,6 +93,7 @@ struct stm32_def {
 	{0x442, "STM32F09x",     0x40000,  2048, {13, 13} },
 	{0x431, "STM32F411",     0x80000, 16384, {13, 19} },
 	{0x441, "STM32F412",     0x80000, 16384, {13, 19} },
+	{0x450, "STM32H74x",    0x200000, 131768, {13, 19} },
 	{0x451, "STM32F76x",    0x200000, 32768, {13, 19} },
 	{ 0 }
 };