diff --git a/src/syncterm/ssh.c b/src/syncterm/ssh.c
index e436853cf83a91de7c3a9b2f9507af3617446bbe..7a91fed4031f1d7371dd6f583d3453ae040c03fd 100644
--- a/src/syncterm/ssh.c
+++ b/src/syncterm/ssh.c
@@ -20,6 +20,7 @@
 #include "uifcinit.h"
 #include "window.h"
 #include "xpendian.h"
+#include "xpprintf.h"
 
 SOCKET          ssh_sock;
 CRYPT_SESSION   ssh_session;