diff --git a/include/types/stream_interface.h b/include/types/stream_interface.h
index 2afefb5..8e9e64b 100644
--- a/include/types/stream_interface.h
+++ b/include/types/stream_interface.h
@@ -132,7 +132,9 @@
 	void (*chk_rcv)(struct stream_interface *); /* chk_rcv function */
 	void (*chk_snd)(struct stream_interface *); /* chk_snd function */
 	int (*read)(int fd);                        /* read callback after poll() */
-	int (*write)(int fd);                       /* wrtie callback after poll() */
+	int (*write)(int fd);                       /* write callback after poll() */
+	void (*close)(struct connection *);         /* close the data channel on the connection */
+
 };
 
 /* A stream interface has 3 parts :