diff --git a/Assets/Scripts/Drag&Drop/ObjectPlaceholder.cs b/Assets/Scripts/Drag&Drop/ObjectPlaceholder.cs
index 514c660..781c2fe 100644
--- a/Assets/Scripts/Drag&Drop/ObjectPlaceholder.cs
+++ b/Assets/Scripts/Drag&Drop/ObjectPlaceholder.cs
@@ -18,6 +18,23 @@ public class ObjectPlaceholder : UnitPlaceholder
             && LevelBoundCache.Contains(transform.position)
             && ResourceManager.Instance.EnoughFor(Rock, Wood, Food)
             && (Prefab.GetComponent<Building>()
-            || ResourceManager.Instance.EnoughPopulationFor(defaultUnitCost));
+            || ResourceManager.Instance.EnoughPopulationFor(defaultUnitCost)) 
+            && IsFarmerAndAllowed();
+    }
+
+    private bool IsFarmerAndAllowed()
+    {
+        Ally unit = Prefab.GetComponent<Ally>();
+        
+        //Obtiens info correctement.
+        LevelTile pointedTile = LevelManager.Instance.Get<LevelTile>(obj => obj.Position.IsContainedIn(transform.position));
+
+        return unit is not Harvester || (unit is Harvester && IsAllowedTile(pointedTile));
+        //return true;
+    }
+
+    private bool IsAllowedTile(LevelTile pointedTile)
+    {
+        return pointedTile is ResourceTile;
     }
 }
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