diff --git a/vimconn_openstack.py b/vimconn_openstack.py
index 0fc5bbd..e0a3aa3 100644
--- a/vimconn_openstack.py
+++ b/vimconn_openstack.py
@@ -600,7 +600,7 @@
             #Then we filter by the rest of filter fields: checksum
             filtered_list = []
             for image in image_list:
-                image_dict=glance.images.get(image.id)
+                image_dict=self.glance.images.get(image.id)
                 if image_dict['checksum']==filter_dict.get('checksum'):
                     filtered_list.append(image)
             return filtered_list