diff --git a/napalm_yang/parsers/xml.py b/napalm_yang/parsers/xml.py
index 231698b2..adf80d6c 100644
--- a/napalm_yang/parsers/xml.py
+++ b/napalm_yang/parsers/xml.py
@@ -105,6 +105,7 @@ def _parse_list_container_helper(cls, mapping, iterators, root, list_vars=None):
                 composite_key = mapping.get("composite_key", None)
                 forced_key = mapping.get("key", None)
                 key_attribute = mapping.get("key_attribute", None)
+                post_process_filter = mapping.pop("post_process_filter", None)
 
                 if composite_key:
                     key = " ".join([extra_vars[k] for k in composite_key])
@@ -115,6 +116,9 @@ def _parse_list_container_helper(cls, mapping, iterators, root, list_vars=None):
                 else:
                     key = element.tag
 
+                if post_process_filter:
+                    key = cls._parse_post_process_filter(post_process_filter, key, extra_vars)
+
                 yield key, etree.tostring(element), extra_vars
 
     @classmethod