diff --git a/arch/risc-v/src/common/riscv_cpuidlestack.c b/arch/risc-v/src/common/riscv_cpuidlestack.c
index 00750d496f..3b2227daf1 100644
--- a/arch/risc-v/src/common/riscv_cpuidlestack.c
+++ b/arch/risc-v/src/common/riscv_cpuidlestack.c
@@ -83,7 +83,7 @@ static uint8_t aligned_data(16) cpu7_idlestack[CONFIG_IDLETHREAD_STACKSIZE];
  * Public Data
  ****************************************************************************/
 
-uint8_t *g_cpu_basestack[CONFIG_SMP_NCPUS] =
+const uint8_t * const g_cpu_basestack[CONFIG_SMP_NCPUS] =
 {
     (uint8_t *)&_ebss,
 #if CONFIG_SMP_NCPUS > 1
diff --git a/arch/risc-v/src/common/riscv_internal.h b/arch/risc-v/src/common/riscv_internal.h
index 160ccb4dd7..e677516039 100644
--- a/arch/risc-v/src/common/riscv_internal.h
+++ b/arch/risc-v/src/common/riscv_internal.h
@@ -117,7 +117,7 @@ EXTERN uintptr_t g_idle_topstack;
 
 /* Address of per-cpu idle stack base */
 
-EXTERN uint8_t *g_cpu_basestack[CONFIG_SMP_NCPUS];
+EXTERN const uint8_t * const g_cpu_basestack[CONFIG_SMP_NCPUS];
 
 /* Address of the saved user stack pointer */