diff --git a/include/debug/mem_safe.h b/include/debug/mem_safe.h
index 72ce25894de..88ccabf18c2 100644
--- a/include/debug/mem_safe.h
+++ b/include/debug/mem_safe.h
@@ -120,7 +120,7 @@ extern int _mem_safe_write_to_text_section(void *dest, char *buf,
  * num_bytes. The read/write permissions are specified via @a perm and can
  * take the values either SYS_MEM_SAFE_READ or SYS_MEM_SAFE_WRITE.
  *
- * The table size is specified via the CONFIG_MEM_SAFE_NUM_REGIONS kconfig
+ * The table size is specified via the CONFIG_MEM_SAFE_NUM_EXTRA_REGIONS kconfig
  * option.
  *
  * If the implementation of safe memory access chosen does not need this API,
diff --git a/subsys/debug/Kconfig b/subsys/debug/Kconfig
index f1d519a0a87..3ca9d9239f5 100644
--- a/subsys/debug/Kconfig
+++ b/subsys/debug/Kconfig
@@ -33,7 +33,7 @@ config MEM_SAFE_CHECK_BOUNDARIES
 
 	Other regions can be added as needed by using the
 	sys_mem_safe_region_add() API. The number of regions that can be added
-	is controlled via the MEM_SAFE_NUM_REGIONS kconfig option.
+	is controlled via the MEM_SAFE_NUM_EXTRA_REGIONS kconfig option.
 
 	This implementation requires initialization and thus consumes some boot
 	time.