diff --git a/addons/survey/static/src/js/survey.js b/addons/survey/static/src/js/survey.js
index f18bb7194f1..7b069a4908c 100644
--- a/addons/survey/static/src/js/survey.js
+++ b/addons/survey/static/src/js/survey.js
@@ -17,6 +17,7 @@
 */
 
 $(document).ready(function () {
+    'use strict';
 
     console.debug("[survey] Custom JS for survey is loading...");
 
diff --git a/addons/survey/survey.py b/addons/survey/survey.py
index 31434ade558..2224c5a6907 100644
--- a/addons/survey/survey.py
+++ b/addons/survey/survey.py
@@ -940,7 +940,7 @@ class survey_user_input_line(osv.osv):
             'survey_id': question.survey_id.id,
         }
         if answer_tag in post:
-            vals.update({'answer_type': 'date', 'value_number': post[answer_tag]})
+            vals.update({'answer_type': 'date', 'value_date': post[answer_tag]})
         else:
             vals.update({'skipped': True})
         old_uil = self.search(cr, uid, [('user_input_id', '=', user_input_id),