diff --git a/secure/lib/libssh/Makefile b/secure/lib/libssh/Makefile
index 6a4231d45acc..374a391d7b32 100644
--- a/secure/lib/libssh/Makefile
+++ b/secure/lib/libssh/Makefile
@@ -20,7 +20,7 @@ SRCS=	acss.c authfd.c authfile.c bufaux.c buffer.c \
 
 # Portability layer
 SRCS+=	bsd-closefrom.c bsd-misc.c getrrsetbyname.c \
-	strtonum.c vis.c xcrypt.c xmmap.c
+	port-tun.c strtonum.c vis.c xcrypt.c xmmap.c
 # FreeBSD additions
 SRCS+=	version.c