diff --git a/broker/src/main/java/io/moquette/persistence/DatabaseStore.java b/broker/src/main/java/io/moquette/persistence/DatabaseStore.java
index ac7790d1..518e5a8a 100644
--- a/broker/src/main/java/io/moquette/persistence/DatabaseStore.java
+++ b/broker/src/main/java/io/moquette/persistence/DatabaseStore.java
@@ -1476,8 +1476,9 @@ public class DatabaseStore {
         try {
             connection = DBUtil.getConnection();
             String sql;
-            if (platform == ProtoConstants.Platform.Platform_Windows || platform == ProtoConstants.Platform.Platform_OSX
-                    || platform == ProtoConstants.Platform.Platform_iOS || platform == ProtoConstants.Platform.Platform_Android) {
+            if (platform == ProtoConstants.Platform.Platform_Windows || platform == ProtoConstants.Platform.Platform_OSX || platform == ProtoConstants.Platform.Platform_Linux) {
+                sql = "update t_user_session set `_deleted` = ?, `_token` = ?, `_voip_token` = ?, `_dt` = ?  where `_uid`=? and (`_platform` = ? or `_platform` = ? or `_platform` = ?)  and `_cid` <> ? and `_deleted` = 0";
+            } else if(platform == ProtoConstants.Platform.Platform_iOS || platform == ProtoConstants.Platform.Platform_Android) {
                 sql = "update t_user_session set `_deleted` = ?, `_token` = ?, `_voip_token` = ?, `_dt` = ?  where `_uid`=? and (`_platform` = ? or `_platform` = ?)  and `_cid` <> ? and `_deleted` = 0";
             } else {
                 sql = "update t_user_session set `_deleted` = ?, `_token` = ?, `_voip_token` = ?, `_dt` = ?  where `_uid`=? and `_platform` = ? and `_cid` <> ? and `_deleted` = 0";
@@ -1493,9 +1494,10 @@ public class DatabaseStore {
 
             statement.setString(index++, uid);
 
-            if (platform == ProtoConstants.Platform.Platform_Windows || platform == ProtoConstants.Platform.Platform_OSX) {
+            if (platform == ProtoConstants.Platform.Platform_Windows || platform == ProtoConstants.Platform.Platform_OSX || platform == ProtoConstants.Platform.Platform_Linux) {
                 statement.setInt(index++, ProtoConstants.Platform.Platform_Windows);
                 statement.setInt(index++, ProtoConstants.Platform.Platform_OSX);
+                statement.setInt(index++, ProtoConstants.Platform.Platform_Linux);
             } else if(platform == ProtoConstants.Platform.Platform_iOS || platform == ProtoConstants.Platform.Platform_Android) {
                 statement.setInt(index++, ProtoConstants.Platform.Platform_iOS);
                 statement.setInt(index++, ProtoConstants.Platform.Platform_Android);
diff --git a/broker/src/main/java/io/moquette/persistence/MemorySessionStore.java b/broker/src/main/java/io/moquette/persistence/MemorySessionStore.java
index f7bb3359..b7b32bf9 100755
--- a/broker/src/main/java/io/moquette/persistence/MemorySessionStore.java
+++ b/broker/src/main/java/io/moquette/persistence/MemorySessionStore.java
@@ -381,8 +381,8 @@ public class MemorySessionStore implements ISessionsStore {
                             if (s.getPlatform() == ProtoConstants.Platform.Platform_Android || s.getPlatform() == ProtoConstants.Platform.Platform_iOS) {
                                 remove = true;
                             }
-                        } else if(platform == ProtoConstants.Platform.Platform_OSX || platform == ProtoConstants.Platform.Platform_Windows) {
-                            if (s.getPlatform() == ProtoConstants.Platform.Platform_OSX || s.getPlatform() == ProtoConstants.Platform.Platform_Windows) {
+                        } else if(platform == ProtoConstants.Platform.Platform_OSX || platform == ProtoConstants.Platform.Platform_Windows || platform == ProtoConstants.Platform.Platform_Linux) {
+                            if (s.getPlatform() == ProtoConstants.Platform.Platform_OSX || s.getPlatform() == ProtoConstants.Platform.Platform_Windows || platform == ProtoConstants.Platform.Platform_Linux) {
                                 remove = true;
                             }
                         } else {
diff --git a/common/src/main/java/cn/wildfirechat/proto/ProtoConstants.java b/common/src/main/java/cn/wildfirechat/proto/ProtoConstants.java
index 1a7f6484..028a9573 100644
--- a/common/src/main/java/cn/wildfirechat/proto/ProtoConstants.java
+++ b/common/src/main/java/cn/wildfirechat/proto/ProtoConstants.java
@@ -45,6 +45,8 @@ public class ProtoConstants {
         int Platform_Windows = 3;
         int Platform_OSX = 4;
         int Platform_WEB = 5;
+        int Platform_WX = 6;
+        int Platform_Linux = 7;
     }
 
     //message NotifyMessage & PullMessageRequest -> type