diff --git a/lib/sendf.c b/lib/sendf.c
index 632b4f63ac..a0fe27e1e7 100644
--- a/lib/sendf.c
+++ b/lib/sendf.c
@@ -363,7 +363,8 @@ ssize_t Curl_send_plain(struct Curl_easy *data, int num,
 #if defined(MSG_FASTOPEN) && !defined(TCP_FASTOPEN_CONNECT) /* Linux */
   if(conn->bits.tcp_fastopen) {
     bytes_written = sendto(sockfd, mem, len, MSG_FASTOPEN,
-                           conn->remote_addr.addr, conn->remote_addr.addrlen);
+                           &conn->remote_addr->sa_addr,
+                           conn->remote_addr->addrlen);
     conn->bits.tcp_fastopen = FALSE;
   }
   else
diff --git a/lib/urldata.h b/lib/urldata.h
index 78cd0f0063..87e4b052a7 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -188,6 +188,7 @@ typedef CURLcode (*Curl_datastream)(struct Curl_easy *data,
 #include "wildcard.h"
 #include "multihandle.h"
 #include "c-hyper.h"
+#include "cf-socket.h"
 
 #ifdef HAVE_GSSAPI
 # ifdef HAVE_GSSGNU