1 files changed, 1 insertions, 0 deletions

diff --git a/src/mailbox.h b/src/mailbox.h
index 3cca366..b35c7a6 100644
--- a/src/mailbox.h
+++ b/src/mailbox.h
@@ -55,6 +55,7 @@ typedef struct __attribute__((aligned(MAIL_ALIGN))) Mail {
   Tag      tags[];  // Variable quantity.
 } Mail;
 
+// TODO: Remove? Unused.
 #define MAIL_SIZE(TYPE) (sizeof(TYPE) + (2 * sizeof(uint32_t)))
 
 void        mbox_init();