diff --git a/plugins/hypervisors/xen/src/com/cloud/hypervisor/xen/resource/CitrixResourceBase.java b/plugins/hypervisors/xen/src/com/cloud/hypervisor/xen/resource/CitrixResourceBase.java
index d08aaecb171..4680fde9980 100644
--- a/plugins/hypervisors/xen/src/com/cloud/hypervisor/xen/resource/CitrixResourceBase.java
+++ b/plugins/hypervisors/xen/src/com/cloud/hypervisor/xen/resource/CitrixResourceBase.java
@@ -661,8 +661,8 @@ public abstract class CitrixResourceBase implements ServerResource, HypervisorRe
             Set<VM> vms = VM.getByNameLabel(conn, vmName);
             Host host = Host.getByUuid(conn, _host.uuid);
 
-            // If DMC is not enable then dont execute this command.
-            if (isDmcEnabled(conn, host)) {
+            // If DMC is not enable then don't execute this command.
+            if (!isDmcEnabled(conn, host)) {
                 String msg = "Unable to scale the vm: " + vmName + " as DMC - Dynamic memory control is not enabled for the XenServer:" + _host.uuid + " ,check your license and hypervisor version.";
                 s_logger.info(msg);
                 return new ScaleVmAnswer(cmd, false, msg);
diff --git a/plugins/hypervisors/xen/src/com/cloud/hypervisor/xen/resource/XenServer56FP1Resource.java b/plugins/hypervisors/xen/src/com/cloud/hypervisor/xen/resource/XenServer56FP1Resource.java
index 78ad2361b07..54aeef5a022 100644
--- a/plugins/hypervisors/xen/src/com/cloud/hypervisor/xen/resource/XenServer56FP1Resource.java
+++ b/plugins/hypervisors/xen/src/com/cloud/hypervisor/xen/resource/XenServer56FP1Resource.java
@@ -244,6 +244,9 @@ public class XenServer56FP1Resource extends XenServer56Resource {
     protected boolean isDmcEnabled(Connection conn, Host host) throws XenAPIException, XmlRpcException {
         Map<String, String> hostParams = new HashMap<String, String>();
         hostParams = host.getLicenseParams(conn);
-        return hostParams.get("restrict_dmc").equalsIgnoreCase("false");
+
+        Boolean isDmcEnabled = hostParams.get("restrict_dmc").equalsIgnoreCase("false");
+
+        return isDmcEnabled;
     }
 }