diff --git a/RedisBungee-API/src/main/java/com/imaginarycode/minecraft/redisbungee/api/config/ConfigLoader.java b/RedisBungee-API/src/main/java/com/imaginarycode/minecraft/redisbungee/api/config/ConfigLoader.java
index b01c9e0..9ba2b9a 100644
--- a/RedisBungee-API/src/main/java/com/imaginarycode/minecraft/redisbungee/api/config/ConfigLoader.java
+++ b/RedisBungee-API/src/main/java/com/imaginarycode/minecraft/redisbungee/api/config/ConfigLoader.java
@@ -52,6 +52,7 @@ public interface ConfigLoader {
         final boolean useSSL = node.getNode("useSSL").getBoolean(false);
         final boolean overrideBungeeCommands = node.getNode("override-bungee-commands").getBoolean(false);
         final boolean registerLegacyCommands = node.getNode("register-legacy-commands").getBoolean(false);
+        final boolean restoreOldKickBehavior = node.getNode("disable-kick-when-online").getBoolean(false);
         String redisPassword = node.getNode("redis-password").getString("");
         String proxyId = node.getNode("proxy-id").getString("test-1");
         final int maxConnections = node.getNode("max-redis-connections").getInt(10);
@@ -81,7 +82,7 @@ public interface ConfigLoader {
         } else {
             plugin.logInfo("Loaded proxy id " + proxyId);
         }
-        RedisBungeeConfiguration configuration = new RedisBungeeConfiguration(proxyId, exemptAddresses, registerLegacyCommands, overrideBungeeCommands, getMessagesFromPath(createMessagesFile(dataFolder)));
+        RedisBungeeConfiguration configuration = new RedisBungeeConfiguration(proxyId, exemptAddresses, registerLegacyCommands, overrideBungeeCommands, getMessagesFromPath(createMessagesFile(dataFolder)), restoreOldKickBehavior);
         Summoner<?> summoner;
         RedisBungeeMode redisBungeeMode;
         if (node.getNode("cluster-mode-enabled").getBoolean(false)) {
@@ -134,6 +135,7 @@ public interface ConfigLoader {
         ConfigurationNode node = yamlConfigurationFileLoader.load();
         HashMap<RedisBungeeConfiguration.MessageType, String> messages = new HashMap<>();
         messages.put(RedisBungeeConfiguration.MessageType.LOGGED_IN_OTHER_LOCATION, node.getNode("logged-in-other-location").getString("§cLogged in from another location."));
+        messages.put(RedisBungeeConfiguration.MessageType.ALREADY_LOGGED_IN, node.getNode("already-logged-in").getString("§cYou are already logged in!"));
         return ImmutableMap.copyOf(messages);
     }
 
diff --git a/RedisBungee-API/src/main/java/com/imaginarycode/minecraft/redisbungee/api/config/RedisBungeeConfiguration.java b/RedisBungee-API/src/main/java/com/imaginarycode/minecraft/redisbungee/api/config/RedisBungeeConfiguration.java
index 04807e3..2e595f4 100644
--- a/RedisBungee-API/src/main/java/com/imaginarycode/minecraft/redisbungee/api/config/RedisBungeeConfiguration.java
+++ b/RedisBungee-API/src/main/java/com/imaginarycode/minecraft/redisbungee/api/config/RedisBungeeConfiguration.java
@@ -22,19 +22,20 @@ import java.util.List;
 public class RedisBungeeConfiguration {
 
     public enum MessageType {
-        LOGGED_IN_OTHER_LOCATION
+        LOGGED_IN_OTHER_LOCATION,
+        ALREADY_LOGGED_IN
     }
 
     private final ImmutableMap<MessageType, String> messages;
     public static final int CONFIG_VERSION = 1;
     private final String proxyId;
     private final List<InetAddress> exemptAddresses;
-
     private final boolean registerLegacyCommands;
-
     private final boolean overrideBungeeCommands;
 
-    public RedisBungeeConfiguration(String proxyId, List<String> exemptAddresses, boolean registerLegacyCommands, boolean overrideBungeeCommands, ImmutableMap<MessageType, String> messages) {
+    private final boolean restoreOldKickBehavior;
+
+    public RedisBungeeConfiguration(String proxyId, List<String> exemptAddresses, boolean registerLegacyCommands, boolean overrideBungeeCommands, ImmutableMap<MessageType, String> messages, boolean restoreOldKickBehavior) {
         this.proxyId = proxyId;
         this.messages = messages;
         ImmutableList.Builder<InetAddress> addressBuilder = ImmutableList.builder();
@@ -44,8 +45,8 @@ public class RedisBungeeConfiguration {
         this.exemptAddresses = addressBuilder.build();
         this.registerLegacyCommands = registerLegacyCommands;
         this.overrideBungeeCommands = overrideBungeeCommands;
+        this.restoreOldKickBehavior = restoreOldKickBehavior;
     }
-
     public String getProxyId() {
         return proxyId;
     }
@@ -65,4 +66,8 @@ public class RedisBungeeConfiguration {
     public ImmutableMap<MessageType, String> getMessages() {
         return messages;
     }
+
+    public boolean restoreOldKickBehavior() {
+        return restoreOldKickBehavior;
+    }
 }
diff --git a/RedisBungee-API/src/main/resources/config.yml b/RedisBungee-API/src/main/resources/config.yml
index 59acbd1..ede06e1 100644
--- a/RedisBungee-API/src/main/resources/config.yml
+++ b/RedisBungee-API/src/main/resources/config.yml
@@ -68,5 +68,10 @@ override-bungee-commands: false
 # restart scripts.
 exempt-ip-addresses: []
 
+# restore old login when online behavior before 0.9.0 update
+# uncomment to enable it
+
+# disable-kick-when-online: true
+
 # Config version DO NOT CHANGE!!!!
 config-version: 1
\ No newline at end of file
diff --git a/RedisBungee-API/src/main/resources/messages.yml b/RedisBungee-API/src/main/resources/messages.yml
index bcf05b4..a1b1853 100644
--- a/RedisBungee-API/src/main/resources/messages.yml
+++ b/RedisBungee-API/src/main/resources/messages.yml
@@ -1 +1,2 @@
-logged-in-other-location: "§cYou logged in from another location!"
\ No newline at end of file
+logged-in-other-location: "§cYou logged in from another location!"
+already-logged-in: "§cYou are already logged in!"
\ No newline at end of file
diff --git a/RedisBungee-Bungee/src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungeeBungeeListener.java b/RedisBungee-Bungee/src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungeeBungeeListener.java
index df7d486..07a44bd 100644
--- a/RedisBungee-Bungee/src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungeeBungeeListener.java
+++ b/RedisBungee-Bungee/src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungeeBungeeListener.java
@@ -58,7 +58,15 @@ public class RedisBungeeBungeeListener extends AbstractRedisBungeeListener<Login
                     if (event.isCancelled()) {
                         return null;
                     }
-                    if (api.isPlayerOnline(event.getConnection().getUniqueId())) {
+                    if (plugin.getConfiguration().restoreOldKickBehavior()) {
+                        for (String s : plugin.getProxiesIds()) {
+                            if (unifiedJedis.sismember("proxy:" + s + ":usersOnline", event.getConnection().getUniqueId().toString())) {
+                                event.setCancelled(true);
+                                event.setCancelReason(plugin.getConfiguration().getMessages().get(RedisBungeeConfiguration.MessageType.ALREADY_LOGGED_IN));
+                                return null;
+                            }
+                        }
+                    } else if (api.isPlayerOnline(event.getConnection().getUniqueId())) {
                         PlayerUtils.setKickedOtherLocation(event.getConnection().getUniqueId().toString(), unifiedJedis);
                         api.kickPlayer(event.getConnection().getUniqueId(), plugin.getConfiguration().getMessages().get(RedisBungeeConfiguration.MessageType.LOGGED_IN_OTHER_LOCATION));
                     }
diff --git a/RedisBungee-Velocity/src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungeeVelocityListener.java b/RedisBungee-Velocity/src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungeeVelocityListener.java
index f119cef..605f5c7 100644
--- a/RedisBungee-Velocity/src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungeeVelocityListener.java
+++ b/RedisBungee-Velocity/src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungeeVelocityListener.java
@@ -65,7 +65,16 @@ public class RedisBungeeVelocityListener extends AbstractRedisBungeeListener<Log
                     if (!event.getResult().isAllowed()) {
                         return null;
                     }
-                    if (api.isPlayerOnline(event.getPlayer().getUniqueId())) {
+                    if (plugin.getConfiguration().restoreOldKickBehavior()) {
+
+                        for (String s : plugin.getProxiesIds()) {
+                            if (unifiedJedis.sismember("proxy:" + s + ":usersOnline", event.getPlayer().getUniqueId().toString())) {
+                                event.setResult(ResultedEvent.ComponentResult.denied(serializer.deserialize(plugin.getConfiguration().getMessages().get(RedisBungeeConfiguration.MessageType.ALREADY_LOGGED_IN))));
+                                return null;
+                            }
+                        }
+
+                    } else if (api.isPlayerOnline(event.getPlayer().getUniqueId())) {
                         PlayerUtils.setKickedOtherLocation(event.getPlayer().getUniqueId().toString(), unifiedJedis);
                         api.kickPlayer(event.getPlayer().getUniqueId(), plugin.getConfiguration().getMessages().get(RedisBungeeConfiguration.MessageType.LOGGED_IN_OTHER_LOCATION));
                     }