diff --git a/app/Http/Controllers/bo/DashboardController.php b/app/Http/Controllers/bo/DashboardController.php
index 643d087..440521a 100644
--- a/app/Http/Controllers/bo/DashboardController.php
+++ b/app/Http/Controllers/bo/DashboardController.php
@@ -26,7 +26,11 @@ class DashboardController extends Controller
 
         // Données calculées à afficher
         $totalParticipation = Participation::count();
-        $avgParticipUser = round($totalParticipation / count($participationsUnique), 1);
+        if (count($participationsUnique) > 0){
+            $avgParticipUser = round($totalParticipation / count($participationsUnique), 1);
+        } else {
+            $avgParticipUser = 0;
+        }
 
         // Tableau des dates comprises dans la table participation
         foreach ($participations as $participation)