1 files changed, 7 insertions, 0 deletions
diff --git a/src/crypto/tls_none.c b/src/crypto/tls_none.c
index dd5681e9ca3c3..5d0c6bda15479 100644
--- a/src/crypto/tls_none.c
+++ b/src/crypto/tls_none.c
@@ -45,6 +45,13 @@ int tls_connection_established(void *tls_ctx, struct tls_connection *conn)
 }
 
 
+char * tls_connection_peer_serial_num(void *tls_ctx,
+				      struct tls_connection *conn)
+{
+	return NULL;
+}
+
+
 int tls_connection_shutdown(void *tls_ctx, struct tls_connection *conn)
 {
 	return -1;