diff --git a/server/src/com/cloud/storage/VolumeManagerImpl.java b/server/src/com/cloud/storage/VolumeManagerImpl.java
index 38392bab638..729539153b8 100644
--- a/server/src/com/cloud/storage/VolumeManagerImpl.java
+++ b/server/src/com/cloud/storage/VolumeManagerImpl.java
@@ -651,11 +651,8 @@ public class VolumeManagerImpl extends ManagerBase implements VolumeManager {
             DiskOfferingVO diskOffering, List<StoragePool> avoids,
             long size, HypervisorType hyperType) {
         StoragePool pool = null;
-        DiskProfile dskCh = null;
-        if (diskOffering != null && diskOffering.isCustomized()) {
-            dskCh.setSize(size);
-        }
 
+        DiskProfile dskCh = null;
         if (volume.getVolumeType() == Type.ROOT
                 && Storage.ImageFormat.ISO != template.getFormat()) {
             dskCh = createDiskCharacteristics(volume, template, dc, offering);
@@ -664,6 +661,10 @@ public class VolumeManagerImpl extends ManagerBase implements VolumeManager {
                     diskOffering);
         }
 
+        if (diskOffering != null && diskOffering.isCustomized()) {
+            dskCh.setSize(size);
+        }
+
         dskCh.setHyperType(hyperType);
 
         final HashSet<StoragePool> avoidPools = new HashSet<StoragePool>(