diff --git a/sxt/ed25519.c b/sxt/ed25519.c
index f1d9afd..da93adb 100644
--- a/sxt/ed25519.c
+++ b/sxt/ed25519.c
@@ -9,6 +9,7 @@
 #include <stdint.h>
 #include <sys/types.h>
 #include <sxt/ge25519.h>
+#include <sxt/rdb.h>
 #include <sxt/sxtkey.h>
 #include <sxt/ciphers.h>
 #include <sxt/lcrypt.h>