diff --git a/pjsip/include/pjsua-lib/pjsua.h b/pjsip/include/pjsua-lib/pjsua.h
index 60965be..78f8b1b 100644
--- a/pjsip/include/pjsua-lib/pjsua.h
+++ b/pjsip/include/pjsua-lib/pjsua.h
@@ -844,6 +844,7 @@
      *			    IM message.
      * @param status	    Delivery status.
      * @param reason	    Delivery status reason.
+     * @param tdata	    The original MESSAGE request.
      * @param rdata	    The incoming MESSAGE response, or NULL if the
      *			    message transaction fails because of time out 
      *			    or transport error.
@@ -854,6 +855,7 @@
 			     void *user_data,
 			     pjsip_status_code status,
 			     const pj_str_t *reason,
+			     pjsip_tx_data *tdata,
 			     pjsip_rx_data *rdata);
 
     /**
diff --git a/pjsip/src/pjsua-lib/pjsua_im.c b/pjsip/src/pjsua-lib/pjsua_im.c
index 46eb0e8..48cb802 100644
--- a/pjsip/src/pjsua-lib/pjsua_im.c
+++ b/pjsip/src/pjsua-lib/pjsua_im.c
@@ -377,6 +377,7 @@
 						 (pjsip_status_code) 
 						    tsx->status_code,
 						 &tsx->status_text,
+						 tsx->last_tx,
 						 rdata);
 	}
     }