diff --git a/adminstuds.php b/adminstuds.php
index 356f815..ab2cacd 100644
--- a/adminstuds.php
+++ b/adminstuds.php
@@ -435,7 +435,7 @@ $smarty->assign('deletion_date', strtotime($poll->end_date) + PURGE_DELAY * 8640
 $smarty->assign('slots', $poll->format === 'D' ? $pollService->splitSlots($slots) : $slots);
 $smarty->assign('slots_hash', $pollService->hashSlots($slots));
 $smarty->assign('votes', $pollService->splitVotes($votes));
-$smarty->assign('best_choices', $pollService->computeBestChoices($votes));
+$smarty->assign('best_choices', $pollService->computeBestChoices($votes, $poll));
 $smarty->assign('comments', $comments);
 $smarty->assign('editingVoteId', $editingVoteId);
 $smarty->assign('message', $message);
diff --git a/app/classes/Framadate/Repositories/RepositoryFactory.php b/app/classes/Framadate/Repositories/RepositoryFactory.php
index 1ebef18..810d391 100644
--- a/app/classes/Framadate/Repositories/RepositoryFactory.php
+++ b/app/classes/Framadate/Repositories/RepositoryFactory.php
@@ -4,16 +4,16 @@
  * is not distributed with this file, you can obtain one at
  * http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.txt
  *
- * Authors of STUdS (initial project): Guilhem BORGHESI (borghesi@unistra.fr) and Raphaël DROZ
+ * Authors of STUdS (initial project): Guilhem BORGHESI (borghesi@unistra.fr) and Raphaël DROZ
  * Authors of Framadate/OpenSondage: Framasoft (https://github.com/framasoft)
  *
  * =============================
  *
- * Ce logiciel est régi par la licence CeCILL-B. Si une copie de cette licence
+ * Ce logiciel est régi par la licence CeCILL-B. Si une copie de cette licence
  * ne se trouve pas avec ce fichier vous pouvez l'obtenir sur
  * http://www.cecill.info/licences/Licence_CeCILL-B_V1-fr.txt
  *
- * Auteurs de STUdS (projet initial) : Guilhem BORGHESI (borghesi@unistra.fr) et Raphaël DROZ
+ * Auteurs de STUdS (projet initial) : Guilhem BORGHESI (borghesi@unistra.fr) et Raphaël DROZ
  * Auteurs de Framadate/OpenSondage : Framasoft (https://github.com/framasoft)
  */
 namespace Framadate\Repositories;
diff --git a/app/classes/Framadate/Services/PollService.php b/app/classes/Framadate/Services/PollService.php
index 104c6f6..ad180b1 100644
--- a/app/classes/Framadate/Services/PollService.php
+++ b/app/classes/Framadate/Services/PollService.php
@@ -25,7 +25,6 @@ use Framadate\Form;
 use Framadate\FramaDB;
 use Framadate\Repositories\RepositoryFactory;
 use Framadate\Security\Token;
-use Framadate\Utils;
 
 class PollService {
     private $connect;
@@ -178,8 +177,18 @@ class PollService {
         return $this->pollRepository->findAllByAdminMail($mail);
     }
 
-    function computeBestChoices($votes) {
-        $result = ['y' => [0], 'inb' => [0]];
+    /**
+     * @param array $votes
+     * @param \stdClass $poll
+     * @return array
+     */
+    public function computeBestChoices($votes, $poll) {
+        if (0 === count($votes)) {
+           return $this->computeEmptyBestChoices($poll);
+        }
+        $result = ['y' => [], 'inb' => []];
+
+        // if there are votes
         foreach ($votes as $vote) {
             $choices = str_split($vote->choices);
             foreach ($choices as $i => $choice) {
@@ -262,6 +271,39 @@ class PollService {
         return $slots;
     }
 
+    /**
+     * @param \stdClass $poll
+     * @return array
+     */
+    private function computeEmptyBestChoices($poll)
+    {
+        $result = ['y' => [], 'inb' => []];
+        // if there is no votes, calculates the number of slot
+
+        $slots = $this->allSlotsByPoll($poll);
+
+        if ($poll->format === 'A') {
+            // poll format classic
+
+            for ($i = 0; $i < count($slots); $i++) {
+                $result['y'][] = 0;
+                $result['inb'][] = 0;
+            }
+        } else {
+            // poll format date
+
+            $slots = $this->splitSlots($slots);
+
+            foreach ($slots as $slot) {
+                for ($i = 0; $i < count($slot->moments); $i++) {
+                    $result['y'][] = 0;
+                    $result['inb'][] = 0;
+                }
+            }
+        }
+        return $result;
+    }
+
     private function random($length) {
         return Token::getToken($length);
     }
@@ -293,10 +335,10 @@ class PollService {
         if (count($votes) <= 0) {
             return;
         }
-        $best_choices = $this->computeBestChoices($votes);
+        $best_choices = $this->computeBestChoices($votes, $poll);
         foreach ($best_choices['y'] as $i => $nb_choice) {
             // if for this option we have reached maximum value and user wants to add itself too
-	     if ($poll->ValueMax !== null && $nb_choice >= $poll->ValueMax && $user_choice[$i] === "2") {
+            if ($poll->ValueMax !== null && $nb_choice >= $poll->ValueMax && $user_choice[$i] === "2") {
                 throw new ConcurrentVoteException();
             }
         }
diff --git a/studs.php b/studs.php
index f202c4a..6cef3ee 100644
--- a/studs.php
+++ b/studs.php
@@ -227,7 +227,7 @@ $smarty->assign('deletion_date', strtotime($poll->end_date) + PURGE_DELAY * 8640
 $smarty->assign('slots', $poll->format === 'D' ? $pollService->splitSlots($slots) : $slots);
 $smarty->assign('slots_hash',  $pollService->hashSlots($slots));
 $smarty->assign('votes', $pollService->splitVotes($votes));
-$smarty->assign('best_choices', $pollService->computeBestChoices($votes));
+$smarty->assign('best_choices', $pollService->computeBestChoices($votes, $poll));
 $smarty->assign('comments', $comments);
 $smarty->assign('editingVoteId', $editingVoteId);
 $smarty->assign('message', $message);