diff --git a/include/proto/raw_sock.h b/include/proto/raw_sock.h
index 704cbc1..97da353 100644
--- a/include/proto/raw_sock.h
+++ b/include/proto/raw_sock.h
@@ -24,8 +24,6 @@
 
 #include <types/stream_interface.h>
 
-extern struct xprt_ops raw_sock;
-
 #endif /* _PROTO_RAW_SOCK_H */
 
 /*
diff --git a/include/proto/ssl_sock.h b/include/proto/ssl_sock.h
index eea5344..d3756a1 100644
--- a/include/proto/ssl_sock.h
+++ b/include/proto/ssl_sock.h
@@ -28,7 +28,6 @@
 #include <types/proxy.h>
 #include <types/stream_interface.h>
 
-extern struct xprt_ops ssl_sock;
 extern int sslconns;
 extern int totalsslconns;
 
@@ -36,7 +35,7 @@
 static inline
 int ssl_sock_is_ssl(struct connection *conn)
 {
-	if (!conn || conn->xprt != &ssl_sock || !conn->xprt_ctx)
+	if (!conn || conn->xprt != xprt_get(XPRT_SSL) || !conn->xprt_ctx)
 		return 0;
 	else
 		return 1;
diff --git a/src/raw_sock.c b/src/raw_sock.c
index 78cb8a2..f24f201 100644
--- a/src/raw_sock.c
+++ b/src/raw_sock.c
@@ -406,7 +406,7 @@
 
 
 /* transport-layer operations for RAW sockets */
-struct xprt_ops raw_sock = {
+static struct xprt_ops raw_sock = {
 	.snd_buf  = raw_sock_from_buf,
 	.rcv_buf  = raw_sock_to_buf,
 #if defined(CONFIG_HAP_LINUX_SPLICE)
diff --git a/src/ssl_sock.c b/src/ssl_sock.c
index 101f7f3..f5d4920 100644
--- a/src/ssl_sock.c
+++ b/src/ssl_sock.c
@@ -130,6 +130,7 @@
 
 int sslconns = 0;
 int totalsslconns = 0;
+static struct xprt_ops ssl_sock;
 
 #if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
 struct list tlskeys_reference = LIST_HEAD_INIT(tlskeys_reference);
@@ -6648,7 +6649,7 @@
 }};
 
 /* transport-layer operations for SSL sockets */
-struct xprt_ops ssl_sock = {
+static struct xprt_ops ssl_sock = {
 	.snd_buf  = ssl_sock_from_buf,
 	.rcv_buf  = ssl_sock_to_buf,
 	.rcv_pipe = NULL,