diff --git a/engine/orchestration/src/com/cloud/agent/manager/SynchronousListener.java b/engine/orchestration/src/com/cloud/agent/manager/SynchronousListener.java
index 2146b00f172..11d278cc3c0 100755
--- a/engine/orchestration/src/com/cloud/agent/manager/SynchronousListener.java
+++ b/engine/orchestration/src/com/cloud/agent/manager/SynchronousListener.java
@@ -57,7 +57,7 @@ public class SynchronousListener implements Listener {
         return false;
     }
 
-    public boolean isDisconnected() {
+    public synchronized boolean isDisconnected() {
         return _disconnected;
     }