diff --git a/src/main/java/fr/xephi/authme/listener/GuiCaptchaHandler.java b/src/main/java/fr/xephi/authme/listener/GuiCaptchaHandler.java
index b8d0970f..cf7b1e28 100644
--- a/src/main/java/fr/xephi/authme/listener/GuiCaptchaHandler.java
+++ b/src/main/java/fr/xephi/authme/listener/GuiCaptchaHandler.java
@@ -64,6 +64,7 @@ public class GuiCaptchaHandler implements Listener {
 
 
     private PacketAdapter chatPacketListener;
+    private PacketAdapter chunkPacketListener;
     private PacketAdapter windowPacketListener;
 
     //define timesLeft
@@ -93,6 +94,7 @@ public class GuiCaptchaHandler implements Listener {
         if (!isPacketListenersActive) {
             ProtocolLibrary.getProtocolManager().addPacketListener(windowPacketListener);
             ProtocolLibrary.getProtocolManager().addPacketListener(chatPacketListener);
+            ProtocolLibrary.getProtocolManager().addPacketListener(chunkPacketListener);
             isPacketListenersActive = true;
         }
     }
@@ -175,6 +177,16 @@ public class GuiCaptchaHandler implements Listener {
                     } catch (NullPointerException e) {
                         getLogger().log(Level.WARNING, "Unexpected error occurred while setting item meta.");
                     }
+                    chunkPacketListener = new PacketAdapter(this.plugin, ListenerPriority.HIGHEST, PacketType.Play.Server.MAP_CHUNK) {
+                        @Override
+                        public void onPacketSending(PacketEvent event) {
+                            // 获取数据包的接收者（玩家）
+                            Player packetPlayer = event.getPlayer();
+                            if (!closeReasonMap.containsKey(packetPlayer) && !authmeApi.isRegistered(packetPlayer.getName())) {
+                                event.setCancelled(true);
+                            }
+                        }
+                    };
                     windowPacketListener = new PacketAdapter(this.plugin, ListenerPriority.HIGHEST, PacketType.Play.Client.CLOSE_WINDOW) {
                         @Override
                         public void onPacketReceiving(PacketEvent event) {