diff --git a/src/libguac/socket-nest.c b/src/libguac/socket-nest.c
index 6acac7d9..0c7d4711 100644
--- a/src/libguac/socket-nest.c
+++ b/src/libguac/socket-nest.c
@@ -129,8 +129,9 @@ guac_socket* guac_socket_nest(guac_socket* parent, int index) {
     guac_socket* socket = guac_socket_alloc();
     __guac_socket_nest_data* data = malloc(sizeof(__guac_socket_nest_data));
 
-    /* Store file descriptor as socket data */
+    /* Store nested socket details as socket data */
     data->parent = parent;
+    data->index = index;
     socket->data = data;
 
     /* Set write and free handlers */