diff --git a/buildroot/share/PlatformIO/boards/marlin_STM32H723VG.json b/buildroot/share/PlatformIO/boards/marlin_STM32H723VG.json
index bf1fc961af0f..44a37e94ec21 100644
--- a/buildroot/share/PlatformIO/boards/marlin_STM32H723VG.json
+++ b/buildroot/share/PlatformIO/boards/marlin_STM32H723VG.json
@@ -4,7 +4,7 @@
     "cpu": "cortex-m7",
     "extra_flags": "-DSTM32H7xx -DSTM32H723xx",
     "f_cpu": "550000000L",
-    "mcu": "stm32h723vzt6",
+    "mcu": "stm32h723vgt6",
     "product_line": "STM32H723xx",
     "variant": "MARLIN_H723VG"
   },