diff --git a/Asterisk.2013/Asterisk.NET/Manager/ManagerConnection.cs b/Asterisk.2013/Asterisk.NET/Manager/ManagerConnection.cs
index d1fe667..bd551a3 100644
--- a/Asterisk.2013/Asterisk.NET/Manager/ManagerConnection.cs
+++ b/Asterisk.2013/Asterisk.NET/Manager/ManagerConnection.cs
@@ -45,6 +45,7 @@ namespace AsterNET.Manager
         private int pingInterval = 10000;
 
         private object lockSocket = new object();
+        private object lockSocketWrite = new object();
         private object lockHandlers = new object();
 
         private bool enableEvents = true;
@@ -1506,7 +1507,10 @@ namespace AsterNET.Manager
 
         private void sendToAsterisk(string buffer)
         {
-            mrSocket.Write(buffer);
+            lock (lockSocketWrite)
+            {
+                mrSocket.Write(buffer);
+            }
         }
 
         #endregion