diff --git a/drivers/FileSR.py b/drivers/FileSR.py
index f54c7d1ad..60e0f09ca 100755
--- a/drivers/FileSR.py
+++ b/drivers/FileSR.py
@@ -905,6 +905,8 @@ def _snapshot(self, snap_type, cbtlog=None, cbt_consistency=None, is_mirror_dest
                 leaf_vdi.utilisation = self.utilisation
                 leaf_vdi.sm_config = {}
                 leaf_vdi.sm_config['vhd-parent'] = dstparent
+                # TODO: fix the raw snapshot case  
+                leaf_vdi.sm_config["image-format"] = getImageStringFromVdiType(self.vdi_type)
                 # If the parent is encrypted set the key_hash
                 # for the new snapshot disk
                 vdi_ref = self.sr.srcmd.params['vdi_ref']
@@ -925,6 +927,8 @@ def _snapshot(self, snap_type, cbtlog=None, cbt_consistency=None, is_mirror_dest
                 base_vdi.size = self.size
                 base_vdi.utilisation = self.utilisation
                 base_vdi.sm_config = {}
+                # TODO: fix the raw snapshot case 
+                base_vdi.sm_config["image-format"] = getImageStringFromVdiType(self.vdi_type)
                 grandparent = self.cowutil.getParent(newsrc, FileVDI.extractUuid)
                 if grandparent:
                     base_vdi.sm_config['vhd-parent'] = grandparent
@@ -942,6 +946,8 @@ def _snapshot(self, snap_type, cbtlog=None, cbt_consistency=None, is_mirror_dest
                 vdi_ref = self.sr.srcmd.params['vdi_ref']
                 sm_config = self.session.xenapi.VDI.get_sm_config(vdi_ref)
                 sm_config['vhd-parent'] = srcparent
+                # TODO: fix the raw snapshot case 
+                sm_config["image-format"] = getImageStringFromVdiType(self.vdi_type)
                 self.session.xenapi.VDI.set_sm_config(vdi_ref, sm_config)
             except Exception as e:
                 util.SMlog("vdi_clone: caught error during VDI.db_introduce: %s" % (str(e)))
diff --git a/drivers/LVMSR.py b/drivers/LVMSR.py
index 9d65080e3..5e60f53e6 100755
--- a/drivers/LVMSR.py
+++ b/drivers/LVMSR.py
@@ -1894,6 +1894,8 @@ def _createSnap(self, snapUuid, snapVdiType, snapSizeLV, isNew, is_mirror_destin
                 snapVDI.sm_config[key] = val
         snapVDI.sm_config["vdi_type"] = snapVdiType
         snapVDI.sm_config["vhd-parent"] = snapParent
+        # TODO: fix the raw snapshot case  
+        snapVDI.sm_config["image-format"] = getImageStringFromVdiType(self.vdi_type)
         snapVDI.lvname = snapLV
         return snapVDI