diff --git a/server/src/com/cloud/network/NetworkManagerImpl.java b/server/src/com/cloud/network/NetworkManagerImpl.java
index 880466c0ac3..e022ea38efb 100755
--- a/server/src/com/cloud/network/NetworkManagerImpl.java
+++ b/server/src/com/cloud/network/NetworkManagerImpl.java
@@ -4718,6 +4718,14 @@ public class NetworkManagerImpl implements NetworkManager, NetworkService, Manag
             }
             
             
+            //can't update from vpc to non-vpc network offering
+            boolean forVpcNew = _configMgr.isOfferingForVpc(networkOffering);
+            boolean vorVpcOriginal = _configMgr.isOfferingForVpc(_configMgr.getNetworkOffering(oldNetworkOfferingId));
+            if (forVpcNew != vorVpcOriginal) {
+                String errMsg = forVpcNew ? "a vpc offering " : "not a vpc offering";
+                throw new InvalidParameterValueException("Can't update as the new offering is " + errMsg);
+            }
+            
             //can't update from vpc to non-vpc network offering
             boolean forVpcNew = _configMgr.isOfferingForVpc(networkOffering);
             boolean vorVpcOriginal = _configMgr.isOfferingForVpc(_configMgr.getNetworkOffering(oldNetworkOfferingId));