1 files changed, 1 insertions, 1 deletions

diff --git a/src/transport/gnunet-nat-client-windows.c b/src/transport/gnunet-nat-client-windows.c
index 72cd624c7..4e4978206 100644
--- a/src/transport/gnunet-nat-client-windows.c
+++ b/src/transport/gnunet-nat-client-windows.c
@@ -397,7 +397,7 @@ send_icmp (const struct in_addr *my_ip,
 
   err = sendto(rawsock,
                packet,
-               off, 0,
+               off - 20, 0,
                (struct sockaddr*)&dst,
                sizeof(dst)); /* or sizeof 'struct sockaddr'? */