diff --git a/include/sxt/errno.h b/include/sxt/errno.h
index 0f6f7a9..a1adfc4 100644
--- a/include/sxt/errno.h
+++ b/include/sxt/errno.h
@@ -46,6 +46,8 @@
 #define SXT_EHASH           (SXT_EBASESHIFT + 15)
 #define SXT_ERDBRD          (SXT_EBASESHIFT + 16)
 #define SXT_EIO             (SXT_EBASESHIFT + 17)
+#define SXT_ETOOBIG         (SXT_EBASESHIFT + 18)
+#define SXT_EKEYFMT         (SXT_EBASESHIFT + 19)
 #define SXT_EINVAL          (SXT_EBASESHIFT + 22)
 #define SXT_ENOMEM          (SXT_EBASESHIFT + 42)