diff --git a/include/RequestManagerClone.h b/include/RequestManagerClone.h
index 53a945bef7..c87811eab2 100644
--- a/include/RequestManagerClone.h
+++ b/include/RequestManagerClone.h
@@ -129,6 +129,8 @@ protected:
 
         return vm_instantiate.merge(tmpl, s_a, att);
     };
+
+    static const std::vector<const char*> REMOVE_DISK_ATTRS;
 };
 
 /* ------------------------------------------------------------------------- */
diff --git a/src/rm/RequestManagerClone.cc b/src/rm/RequestManagerClone.cc
index c21aed43fe..b17ebc0a40 100644
--- a/src/rm/RequestManagerClone.cc
+++ b/src/rm/RequestManagerClone.cc
@@ -119,6 +119,9 @@ Request::ErrorCode RequestManagerClone::clone(int source_id, const string &name,
 /* -------------------------------------------------------------------------- */
 /* -------------------------------------------------------------------------- */
 
+const std::vector<const char*> VMTemplateClone::REMOVE_DISK_ATTRS = {
+    "IMAGE", "IMAGE_UNAME", "IMAGE_UID", "OPENNEBULA_MANAGED"};
+
 Request::ErrorCode VMTemplateClone::clone(int source_id, const string &name,
         int &new_id, bool recursive, const string& s_uattr, RequestAttributes& att)
 {
@@ -198,9 +201,10 @@ Request::ErrorCode VMTemplateClone::clone(int source_id, const string &name,
                 goto error_images;
             }
 
-            (*disk)->remove("IMAGE");
-            (*disk)->remove("IMAGE_UNAME");
-            (*disk)->remove("IMAGE_UID");
+            for (auto attr : REMOVE_DISK_ATTRS)
+            {
+                (*disk)->remove(attr);
+            }
 
             (*disk)->replace("IMAGE_ID", new_img_id);