diff --git a/targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/CMakeLists.txt b/targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/CMakeLists.txt
index 9b26267018..6c4d9652ed 100644
--- a/targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/CMakeLists.txt
+++ b/targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/CMakeLists.txt
@@ -21,6 +21,7 @@ target_include_directories(mbed-stm32h723xg
 target_sources(mbed-stm32h723xg
     INTERFACE
         ${STARTUP_FILE}
+        system_clock.c
 )
 
 mbed_set_linker_script(mbed-stm32h723xg ${CMAKE_CURRENT_SOURCE_DIR}/${LINKER_FILE})
diff --git a/targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/TARGET_NUCLEO_H723ZG/CMakeLists.txt b/targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/TARGET_NUCLEO_H723ZG/CMakeLists.txt
index d27c221457..3b3b20bf52 100644
--- a/targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/TARGET_NUCLEO_H723ZG/CMakeLists.txt
+++ b/targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/TARGET_NUCLEO_H723ZG/CMakeLists.txt
@@ -6,7 +6,6 @@ add_library(mbed-nucleo-h723zg INTERFACE)
 target_sources(mbed-nucleo-h723zg
     INTERFACE
         PeripheralPins.c
-        system_clock.c
 )
 
 target_include_directories(mbed-nucleo-h723zg
diff --git a/targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/cmsis_nvic.h b/targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/cmsis_nvic.h
index 6559955652..161c860e7a 100644
--- a/targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/cmsis_nvic.h
+++ b/targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H723xG/cmsis_nvic.h
@@ -40,11 +40,11 @@
 #endif
 
 #if !defined(MBED_RAM1_START)
-#define MBED_RAM_1START  0x24000000
+#define MBED_RAM1_START  0x24000000
 #endif
 
 #if !defined(MBED_RAM1_SIZE)
-#define MBED1_RAM_SIZE  0x50000  // 320 KB
+#define MBED_RAM1_SIZE  0x50000  // 320 KB
 #endif
 
 #define NVIC_NUM_VECTORS        180