diff --git a/agent/src/com/cloud/agent/resource/computing/LibvirtComputingResource.java b/agent/src/com/cloud/agent/resource/computing/LibvirtComputingResource.java
index 9de02fd6119..71cd9a168d5 100644
--- a/agent/src/com/cloud/agent/resource/computing/LibvirtComputingResource.java
+++ b/agent/src/com/cloud/agent/resource/computing/LibvirtComputingResource.java
@@ -1591,7 +1591,7 @@ public class LibvirtComputingResource extends ServerResourceBase implements Serv
         return command.execute();
     }
     
-	private Answer execute(MigrateCommand cmd) {
+	private synchronized Answer execute(MigrateCommand cmd) {
 		String vmName = cmd.getVmName();
     	
 		State state = null;