diff --git a/Libraries/CMSIS/Device/Maxim/MAX32662/Source/system_max32662.c b/Libraries/CMSIS/Device/Maxim/MAX32662/Source/system_max32662.c
index 89c352333d..29e5c8b94b 100644
--- a/Libraries/CMSIS/Device/Maxim/MAX32662/Source/system_max32662.c
+++ b/Libraries/CMSIS/Device/Maxim/MAX32662/Source/system_max32662.c
@@ -32,7 +32,8 @@
 
 extern void (*const __isr_vector[])(void);
 
-uint32_t SystemCoreClock = HIRC_FREQ;
+uint32_t SystemCoreClock __attribute__((section(".shared")));
+volatile uint32_t mailbox __attribute__((section(".mailbox")));
 
 /*
 The libc implementation from GCC 11+ depends on _getpid and _kill in some places.