diff --git a/orochi/bot.py b/orochi/bot.py
index a53d318..32a6159 100644
--- a/orochi/bot.py
+++ b/orochi/bot.py
@@ -286,6 +286,11 @@ async def close(ctx: commands.Context):
                 vote.vote = Vote.ALLY
                 await ctx.send(f"L'équipe **{' et '.join(player.name for player in vote.players)}** "
                                f"n'a pas voté en salle **{room.room.value}** et s'est alliée par défaut.")
+            if vote.swapped:
+                vote.vote = Vote.ALLY if vote.vote == Vote.BETRAY else Vote.BETRAY
+                await ctx.send(f"L'équipe **{' et '.join(player.name for player in vote.players)}** "
+                               f"en salle **{room.room.value}** a vu son vote échangé. "
+                               f"Nouveau vote : **{vote.vote.value}**")
 
     for player in game.players.values():
         channel = bot.get_channel(player.private_channel_id)
@@ -376,7 +381,7 @@ async def setup(ctx: commands.Context, room: Room):
 
 @bot.command(help="Falsification des votes")
 @commands.has_permissions(administrator=True)
-async def cheat(ctx: commands.Context, player_name: str, vote: Vote | None):
+async def vote(ctx: commands.Context, player_name: str, vote: Vote | None):
     game: Game = Game.INSTANCE
     if game.state != GameState.VOTING:
         return await ctx.reply("Les votes ne sont pas ouverts.")
@@ -398,6 +403,35 @@ async def cheat(ctx: commands.Context, player_name: str, vote: Vote | None):
     await ctx.reply(f"Le vote de **{current_player.name}** a bien été falsifié (nouveau vote : *{vote}**).")
 
 
+@bot.command(help="Préparation d'une salle")
+@commands.has_any_role('IA', 'Dan')
+async def swap(ctx: commands.Context, player_name: str):
+    """
+    Exchange the vote of the given player.
+    """
+    game: Game = Game.INSTANCE
+    current_round = game.rounds[-1]
+
+    if game.state != GameState.VOTING:
+        return await ctx.reply("Les votes ne sont pas ouverts.")
+
+    for player in game.players.values():
+        if player.name.lower() == player_name.lower():
+            current_player = player
+            break
+    else:
+        return await ctx.reply("Le joueur n'existe pas.")
+
+    for room in current_round.rooms:
+        for v in room.votes:
+            if current_player in v.players:
+                v.swapped ^= True
+
+    game.save('game.save')
+    await ctx.reply(f"Le vote de **{current_player.name}** a bien été inversé. S'il était déjà inversé, "
+                    "alors il est de retour à la normale.")
+
+
 @bot.command(help="Reboot")
 @commands.has_permissions(administrator=True)
 async def reboot(ctx: commands.Context):
@@ -425,7 +459,7 @@ class VoteView(disnake.ui.View):
 
         await interaction.response.send_message("Votre vote a bien été pris en compte.", ephemeral=True)
 
-        self.vote(interaction, Vote.ALLY)
+        await self.vote(interaction, Vote.ALLY)
 
     @disnake.ui.button(label="Trahir", style=disnake.ButtonStyle.red)
     async def cancel(self, button: disnake.ui.Button, interaction: disnake.MessageInteraction):
@@ -434,9 +468,9 @@ class VoteView(disnake.ui.View):
 
         await interaction.response.send_message("Votre vote a bien été pris en compte.", ephemeral=True)
 
-        self.vote(interaction, Vote.BETRAY)
+        await self.vote(interaction, Vote.BETRAY)
 
-    def vote(self, interaction: disnake.MessageInteraction, vote: Vote) -> None:
+    async def vote(self, interaction: disnake.MessageInteraction, vote: Vote) -> None:
         game = Game.INSTANCE
         current_round = game.rounds[-1]
         current_player: Player | None = None
diff --git a/orochi/models.py b/orochi/models.py
index 00bb82b..6c50bad 100644
--- a/orochi/models.py
+++ b/orochi/models.py
@@ -70,6 +70,7 @@ class RoundVote:
     player1: Player | None = None
     player2: Player | None = None
     vote: Vote | None = None
+    swapped: bool = field(default=False, init=False)
 
     @property
     def players(self) -> Iterable[Player]:
diff --git a/orochi/templates/list.html b/orochi/templates/list.html
index 1bc95d1..67e6066 100644
--- a/orochi/templates/list.html
+++ b/orochi/templates/list.html
@@ -58,7 +58,12 @@
                                 {% endif %}
                                 <td>{{ vote.player1.name|default('<em>personne</em>')|safe }}{% if vote.player2 %}, {{ vote.player2.name }}{% endif %}</td>
                                 {% if round.round != game.rounds|length or game.state.value == 2 or admin %}
-                                    <td>{{ vote.vote.value|default('<em>Pas de vote</em>')|safe }}</td>
+                                    <td>
+                                        {{ vote.vote.value|default('<em>Pas de vote</em>')|safe }}
+                                        {% if admin and vote.swapped %}
+                                            <span class="badge bg-danger">Échange</span>
+                                        {% endif %}
+                                    </td>
                                 {% else %}
                                     <td><em>Vote en cours ...</em></td>
                                 {% endif %}