diff --git a/view/assets/js/wikilibras.js b/view/assets/js/wikilibras.js
index 6946767..2dc9f69 100644
--- a/view/assets/js/wikilibras.js
+++ b/view/assets/js/wikilibras.js
@@ -437,15 +437,19 @@
 	}
 
 	function _finishTask(task, deferred, answer) {
+		var last_answer = task.info.last_answer;
+		var hasLastAnswer = typeof last_answer != "undefined";
+		var toSubmitUserId =  hasLastAnswer ?
+				last_answer.parameter_json["userId"] : _getLoggedUser();
 		$.ajax({
 			type : "POST",
 			url : server_backend_url + "/finish_task",
 			data : {
 				"task_id" : task.id,
 				"project_id" : task.project_id,
-				"user_id" : _getLoggedUser(),
+				"user_id" : toSubmitUserId,
 				"sign_name" : task.info.sign_name,
-				"number_of_approval" : answer.number_of_approval,
+				"number_of_approval" : answer.number_of_approval
 			},
 			success : function(response) {
 				_saveAnswer(task, deferred, answer);
--
libgit2 0.21.2