diff --git a/server/src/com/cloud/network/guru/DirectNetworkGuru.java b/server/src/com/cloud/network/guru/DirectNetworkGuru.java
index 98533a0c1f4..4657c27acd6 100755
--- a/server/src/com/cloud/network/guru/DirectNetworkGuru.java
+++ b/server/src/com/cloud/network/guru/DirectNetworkGuru.java
@@ -207,6 +207,13 @@ public class DirectNetworkGuru extends AdapterBase implements NetworkGuru {
         allocateDirectIp(nic, network, vm, dc, nic.getRequestedIpv4(), nic.getRequestedIpv6());
         nic.setStrategy(ReservationStrategy.Create);
 
+        if (nic.getMacAddress() == null) {
+            nic.setMacAddress(_networkModel.getNextAvailableMacAddressInNetwork(network.getId()));
+            if (nic.getMacAddress() == null) {
+                throw new InsufficientAddressCapacityException("Unable to allocate more mac addresses", Network.class, network.getId());
+            }
+        }
+
         return nic;
     }