diff --git a/arch/arm/src/s32k1xx/s32k1xx_flashcfg.c b/arch/arm/src/s32k1xx/s32k1xx_flashcfg.c
index 4767b874c8..eb688660ec 100644
--- a/arch/arm/src/s32k1xx/s32k1xx_flashcfg.c
+++ b/arch/arm/src/s32k1xx/s32k1xx_flashcfg.c
@@ -49,7 +49,7 @@
 
 /* Configured FLASH configuration bytes.  NOTE:  Little endian assumed. */
 
-uint8_t g_flashcfg[16]  __attribute__((section(".flashcfg"))) =
+const uint8_t g_flashcfg[16]  __attribute__((section(".flashcfg"))) =
 {
   (uint8_t)(CONFIG_S32K1XX_FLASHCFG_BACKDOOR1 & 0xff),         /* 0x0400 */
   (uint8_t)((CONFIG_S32K1XX_FLASHCFG_BACKDOOR1 >> 8) & 0xff),  /* 0x0401 */