diff --git a/Assets/Scripts/PropositionHandler.cs b/Assets/Scripts/PropositionHandler.cs
index c1a0457..7d296e5 100644
--- a/Assets/Scripts/PropositionHandler.cs
+++ b/Assets/Scripts/PropositionHandler.cs
@@ -25,7 +25,7 @@ public void ShowPlayersProposition(Question currentQuestion)
         for (int i = 0; i < 2; i++)
         {
             int index = i; // Capture la valeur de i pour cette itération
-            if(props[i].photoUrl == null)
+            if(string.IsNullOrEmpty(props[i].photoUrl))
             {
                 Debug.Log("One player did not send a proposition !", this);
                 btns[index].sprite = defaultImage; // Utilise l'index local au lieu de i