diff --git a/core/src/main/java/hudson/model/ItemGroupMixIn.java b/core/src/main/java/hudson/model/ItemGroupMixIn.java
index 4d26d60aeee3f72c357e41acb8f785253a689243..715b6e4a56cda2d8baed7d0f031e94e011692f4f 100644
--- a/core/src/main/java/hudson/model/ItemGroupMixIn.java
+++ b/core/src/main/java/hudson/model/ItemGroupMixIn.java
@@ -144,7 +144,12 @@ public abstract class ItemGroupMixIn {
         String mode = req.getParameter("mode");
         if(mode!=null && mode.equals("copy")) {
             String from = req.getParameter("from");
+
+            // resolve a name to Item
             Item src = parent.getItem(from);
+            if (src==null)
+                src = Hudson.getInstance().getItemByFullName(from);
+
             if(src==null) {
                 if(Util.fixEmpty(from)==null)
                     throw new Failure("Specify which job to copy");