diff --git a/htdocs/langs/en_US/opensurvey.lang b/htdocs/langs/en_US/opensurvey.lang
index 7d26151fa16..9fafacaf8bf 100644
--- a/htdocs/langs/en_US/opensurvey.lang
+++ b/htdocs/langs/en_US/opensurvey.lang
@@ -48,6 +48,8 @@ AddEndHour=Add end hour
 votes=vote(s)
 NoCommentYet=No comments have been posted for this poll yet
 CanComment=Voters can comment in the poll
+YourVoteIsPrivate=This poll is private, nobody can see your vote.
+YourVoteIsPublic=This poll is public, anybody with the link can see your vote.
 CanSeeOthersVote=Voters can see other people's vote
 SelectDayDesc=For each selected day, you can choose, or not, meeting hours in the following format:<br>- empty,<br>- "8h", "8H" or "8:00" to give a meeting's start hour,<br>- "8-11", "8h-11h", "8H-11H" or "8:00-11:00" to give a meeting's start and end hour,<br>- "8h15-11h15", "8H15-11H15" or "8:15-11:15" for the same thing but with minutes.
 BackToCurrentMonth=Back to current month
diff --git a/htdocs/public/opensurvey/studs.php b/htdocs/public/opensurvey/studs.php
index 2a39e6e4730..7be05684fd2 100644
--- a/htdocs/public/opensurvey/studs.php
+++ b/htdocs/public/opensurvey/studs.php
@@ -274,7 +274,13 @@ $toutsujet = str_replace("°", "'", $toutsujet);
 
 
 print '<div class="survey_invitation">'.$langs->trans("YouAreInivitedToVote").'</div>';
-print $langs->trans("OpenSurveyHowTo").'<br><br>';
+print $langs->trans("OpenSurveyHowTo").'<br>';
+if (empty($object->allow_spy)) {
+	print '<span class="opacitymedium">'.$langs->trans("YourVoteIsPrivate").'</span><br>';
+} else {
+	print $form->textwithpicto('<span class="opacitymedium">'.$langs->trans("YourVoteIsPublic").'</span>', $langs->trans("CanSeeOthersVote")).'<br>';
+}
+print '<br>';
 
 print '<div class="corps"> '."\n";