diff --git a/htdocs/install/mysql/migration/3.5.0-3.6.0.sql b/htdocs/install/mysql/migration/3.5.0-3.6.0.sql
index 53d6198a849..3d82a6cb1c0 100755
--- a/htdocs/install/mysql/migration/3.5.0-3.6.0.sql
+++ b/htdocs/install/mysql/migration/3.5.0-3.6.0.sql
@@ -18,3 +18,4 @@
 -- -- VMYSQL4.1 DELETE FROM llx_usergroup_user      WHERE fk_usergroup NOT IN (SELECT rowid from llx_usergroup);
 
 ALTER TABLE llx_bookmark ADD COLUMN entity integer DEFAULT 1 NOT NULL;
+ALTER TABLE  `llx_opensurvey_sondage` ADD  `allow_comments` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT 1 AFTER  `canedit` ;
\ No newline at end of file
diff --git a/htdocs/install/mysql/tables/llx_opensurvey_sondage.sql b/htdocs/install/mysql/tables/llx_opensurvey_sondage.sql
index f66fbcf5e79..476b3d9fb40 100644
--- a/htdocs/install/mysql/tables/llx_opensurvey_sondage.sql
+++ b/htdocs/install/mysql/tables/llx_opensurvey_sondage.sql
@@ -27,6 +27,7 @@ CREATE TABLE llx_opensurvey_sondage (
        mailsonde varchar(2) DEFAULT '0',
        survey_link_visible integer DEFAULT 1,
 	   canedit integer DEFAULT 0,
+       allow_comments TINYINT(1) unsigned NOT NULL DEFAULT 1,
        origin VARCHAR(64),
        tms TIMESTAMP,
 	   sujet TEXT
diff --git a/htdocs/langs/en_US/opensurvey.lang b/htdocs/langs/en_US/opensurvey.lang
index db1140097a7..88308711fc6 100644
--- a/htdocs/langs/en_US/opensurvey.lang
+++ b/htdocs/langs/en_US/opensurvey.lang
@@ -66,6 +66,7 @@ AddEndHour=Add end hour
 votes=vote(s)
 NoCommentYet=No comments have been posted for this poll yet
 CanEditVotes=Can change vote of others
+CanComment=Users can comment in the poll
 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
 PublicLinkToCreateSurvey=Public link to allow everybody to create a survey
diff --git a/htdocs/opensurvey/adminstuds.php b/htdocs/opensurvey/adminstuds.php
index 2700ea5c518..c98b3ad376e 100644
--- a/htdocs/opensurvey/adminstuds.php
+++ b/htdocs/opensurvey/adminstuds.php
@@ -89,6 +89,7 @@ if ($action == 'update')
 		$object->date_fin = $expiredate;
 		$object->survey_link_visible = GETPOST('survey_link_visible')=='on'?1:0;
 		$object->canedit = GETPOST('canedit')=='on'?1:0;
+		$object->allow_comments = GETPOST('cancomment') == 'on' ? true : false;
 
 		$res=$object->update($user);
 		if ($res < 0)
@@ -231,6 +232,15 @@ if ($action == 'edit')
 else print yn($object->canedit);
 print '</td></tr>';
 
+// Users can comment
+print '<tr><td>'.$langs->trans('CanComment').'</td><td colspan="2">';
+if ($action == 'edit')
+{
+	print '<input type="checkbox" name="cancomment" size="40"'.($object->allow_comments?' checked="true"':'').'">';
+}
+else print yn($object->allow_comments);
+print '</td></tr>';
+
 // Expire date
 print '<tr><td>'.$langs->trans('ExpireDate').'</td><td colspan="2">';
 if ($action == 'edit') print $form->select_date($expiredate?$expiredate:$object->date_fin,'expire');
@@ -301,12 +311,14 @@ else
 print '<br>';
 
 // Add comment
-print $langs->trans("AddACommentForPoll") . '<br>';
-print '<textarea name="comment" rows="2" cols="80"></textarea><br>'."\n";
-print $langs->trans("Name") .': <input type="text" name="commentuser" value="'.$user->getFullName($langs).'"><br>'."\n";
-print '<input type="submit" class="button" name="ajoutcomment" value="'.dol_escape_htmltag($langs->trans("AddComment")).'"><br>'."\n";
-if (isset($erreur_commentaire_vide) && $erreur_commentaire_vide=="yes") {
-	print "<font color=#FF0000>" . $langs->trans("ErrorFieldRequired",$langs->transnoentitiesnoconv("Name")) . "</font>";
+if ($object->allow_comments) {
+	print $langs->trans("AddACommentForPoll") . '<br>';
+	print '<textarea name="comment" rows="2" cols="80"></textarea><br>'."\n";
+	print $langs->trans("Name") .': <input type="text" name="commentuser" value="'.$user->getFullName($langs).'"><br>'."\n";
+	print '<input type="submit" class="button" name="ajoutcomment" value="'.dol_escape_htmltag($langs->trans("AddComment")).'"><br>'."\n";
+	if (isset($erreur_commentaire_vide) && $erreur_commentaire_vide=="yes") {
+		print "<font color=#FF0000>" . $langs->trans("ErrorFieldRequired",$langs->transnoentitiesnoconv("Name")) . "</font>";
+	}
 }
 
 print '</form>';
diff --git a/htdocs/opensurvey/class/opensurveysondage.class.php b/htdocs/opensurvey/class/opensurveysondage.class.php
index 6db64139971..9e40f254021 100644
--- a/htdocs/opensurvey/class/opensurveysondage.class.php
+++ b/htdocs/opensurvey/class/opensurveysondage.class.php
@@ -54,8 +54,11 @@ class Opensurveysondage extends CommonObject
 	var $survey_link_visible;
 	var $canedit;
 
-
-
+	/**
+	 * Allow comments on this poll
+	 * @var bool
+	 */
+	public $allow_comments;
 
     /**
      *  Constructor
@@ -196,6 +199,7 @@ class Opensurveysondage extends CommonObject
 		$sql.= " t.mailsonde,";
 		$sql.= " t.survey_link_visible,";
 		$sql.= " t.canedit,";
+		$sql.= " t.allow_comments,";
 		$sql.= " t.sujet,";
 		$sql.= " t.tms";
         $sql.= " FROM ".MAIN_DB_PREFIX."opensurvey_sondage as t";
@@ -225,6 +229,7 @@ class Opensurveysondage extends CommonObject
 				$this->mailsonde = $obj->mailsonde;
 				$this->survey_link_visible = $obj->survey_link_visible;
 				$this->canedit = $obj->canedit;
+				$this->allow_comments = $obj->allow_comments;
 				$this->sujet = $obj->sujet;
 
 				$this->date_m = $this->db->jdate($obj->tls);
@@ -274,8 +279,8 @@ class Opensurveysondage extends CommonObject
 		if (isset($this->format)) $this->format=trim($this->format);
 		if (isset($this->mailsonde)) $this->mailsonde=trim($this->mailsonde);
 		if (isset($this->survey_link_visible)) $this->survey_link_visible=trim($this->survey_link_visible);
-		if (isset($this->canedit)) $this->canedit=trim($this->canedit);
-
+		$this->canedit = $this->canedit ? 1 : 0;
+		$this->allow_comments = $this->allow_comments ? 1 : 0;
 
 		// Check parameters
 		// Put here code to add a control on parameters values
@@ -293,8 +298,9 @@ class Opensurveysondage extends CommonObject
 		$sql.= " format=".(isset($this->format)?"'".$this->db->escape($this->format)."'":"null").",";
 		$sql.= " mailsonde=".(isset($this->mailsonde)?$this->db->escape($this->mailsonde):"null").",";
 		$sql.= " survey_link_visible=".(isset($this->survey_link_visible)?$this->db->escape($this->survey_link_visible):"null").",";
-		$sql.= " canedit=".(isset($this->canedit)?$this->db->escape($this->canedit):"null")."";
-
+		$sql.= " canedit=".$this->db->escape($this->canedit).",";
+		$sql.= " allow_comments=".$this->db->escape($this->allow_comments);
+		
         //$sql.= " WHERE rowid=".$this->id;
 		$sql.= " WHERE id_sondage_admin='".$this->db->escape($this->id_sondage_admin)."'";
 
diff --git a/htdocs/opensurvey/fonctions.php b/htdocs/opensurvey/fonctions.php
index ae3e9800d92..7f3ecb5f36e 100644
--- a/htdocs/opensurvey/fonctions.php
+++ b/htdocs/opensurvey/fonctions.php
@@ -255,13 +255,14 @@ function ajouter_sondage($origin)
 		$date_fin = time()+15552000;
 	}
 	$canedit=empty($_SESSION['formatcanedit'])?'0':'1';
+	$allow_comments = empty($_SESSION['allow_comments']) ? 0 : 1;
 
 	// Insert survey
 	$sql = 'INSERT INTO '.MAIN_DB_PREFIX.'opensurvey_sondage';
-	$sql.= '(id_sondage, commentaires, mail_admin, nom_admin, titre, id_sondage_admin, date_fin, format, mailsonde, canedit, origin, sujet)';
+	$sql.= '(id_sondage, commentaires, mail_admin, nom_admin, titre, id_sondage_admin, date_fin, format, mailsonde, canedit, allow_comments, origin, sujet)';
 	$sql.= " VALUES ('".$db->escape($sondage)."', '".$db->escape($_SESSION['commentaires'])."', '".$db->escape($_SESSION['adresse'])."', '".$db->escape($_SESSION['nom'])."',";
 	$sql.= " '".$db->escape($_SESSION['titre'])."', '".$sondage_admin."', '".$db->idate($date_fin)."', '".$_SESSION['formatsondage']."', '".$db->escape($_SESSION['mailsonde'])."',";
-	$sql.= " '".$canedit."', '".$db->escape($origin)."',";
+	$sql.= " '".$canedit."', '".$allow_comments."', '".$db->escape($origin)."',";
 	$sql.= " '".$db->escape($_SESSION['toutchoix'])."'";
 	$sql.= ")";
 	dol_syslog($sql);
@@ -288,6 +289,7 @@ function ajouter_sondage($origin)
 	unset($_SESSION["commentaires"]);
 	unset($_SESSION["canedit"]);
 	unset($_SESSION["mailsonde"]);
+	unset($_SESSION['allow_comments']);
 
 	header("Location: ".$urlback);
 	exit();
diff --git a/htdocs/opensurvey/public/create_survey.php b/htdocs/opensurvey/public/create_survey.php
index 2706081b091..9e33933b4ae 100644
--- a/htdocs/opensurvey/public/create_survey.php
+++ b/htdocs/opensurvey/public/create_survey.php
@@ -74,6 +74,12 @@ if (GETPOST("creation_sondage_date") || GETPOST("creation_sondage_autre") || GET
 	} else {
 		$_SESSION["mailsonde"] = false;
 	}
+	
+	if (GETPOST('allow_comments') == 'on') {
+		$_SESSION['allow_comments'] = true;
+	} else {
+		$_SESSION['allow_comments'] = false;
+	}
 
 	if (! isValidEmail($adresse)) $erreur_adresse = true;
 
@@ -172,6 +178,10 @@ if ($_SESSION["mailsonde"]) $cochemail="checked";
 
 print '<input type="checkbox" name="mailsonde" '.$cochemail.'> '. $langs->trans("ToReceiveEMailForEachVote") .'<br>'."\n";
 
+if ($_SESSION['allow_comments']) $allow_comments = "checked";
+
+print '<input type="checkbox" name="allow_comments" '.$allow_comments.'> '.$langs->trans('CanComment').'<br />'."\n";
+
 if (GETPOST('choix_sondage'))
 {
 	if (GETPOST('choix_sondage') == 'date') print '<input type="hidden" name="creation_sondage_date" value="date">';
diff --git a/htdocs/opensurvey/public/studs.php b/htdocs/opensurvey/public/studs.php
index 2c84dead099..dec1d8f6d22 100644
--- a/htdocs/opensurvey/public/studs.php
+++ b/htdocs/opensurvey/public/studs.php
@@ -701,15 +701,17 @@ if ($comments)
 }
 
 // Form to add comment
-print '<div class="addcomment">' .$langs->trans("AddACommentForPoll") . "<br>\n";
+if ($object->allow_comments) {
+	print '<div class="addcomment">' .$langs->trans("AddACommentForPoll") . "<br>\n";
 
-print '<textarea name="comment" rows="2" cols="60"></textarea><br>'."\n";
-print $langs->trans("Name") .' : ';
-print '<input type="text" name="commentuser" maxlength="64" /> &nbsp; '."\n";
-print '<input type="submit" class="button" name="ajoutcomment" value="'.dol_escape_htmltag($langs->trans("AddComment")).'"><br>'."\n";
-print '</form>'."\n";
+	print '<textarea name="comment" rows="2" cols="60"></textarea><br>'."\n";
+	print $langs->trans("Name") .' : ';
+	print '<input type="text" name="commentuser" maxlength="64" /> &nbsp; '."\n";
+	print '<input type="submit" class="button" name="ajoutcomment" value="'.dol_escape_htmltag($langs->trans("AddComment")).'"><br>'."\n";
+	print '</form>'."\n";
 
-print '</div>'."\n";	// div add comment
+	print '</div>'."\n";	// div add comment
+}
 
 print '<br><br>';