diff --git a/pycsw/core/metadata.py b/pycsw/core/metadata.py
index c8838ebf9..4e26b0029 100644
--- a/pycsw/core/metadata.py
+++ b/pycsw/core/metadata.py
@@ -1448,11 +1448,12 @@ def _parse_iso(context, repos, exml):
         if (hasattr(md_identification, 'keywords') and
             len(md_identification.keywords) > 0):
             all_keywords = [item for sublist in md_identification.keywords for item in sublist.keywords if item is not None]
-            _set(context, recobj, 'pycsw:Keywords', ','.join([k.name for k in all_keywords]))
-            _set(context, recobj, 'pycsw:KeywordType', md_identification.keywords[0].type)
-            _set(context, recobj, 'pycsw:Themes', 
-                 json.dumps([t for t in md_identification.keywords if t.thesaurus is not None], 
-                            default=lambda o: o.__dict__))
+            if all_keywords:
+                _set(context, recobj, 'pycsw:Keywords', ','.join([k.name for k in all_keywords if hasattr(k,'name')]))
+                _set(context, recobj, 'pycsw:KeywordType', md_identification.keywords[0].type)
+                _set(context, recobj, 'pycsw:Themes', 
+                    json.dumps([t for t in md_identification.keywords if t.thesaurus is not None], 
+                                default=lambda o: o.__dict__))
 
         # Creator
         if (hasattr(md_identification, 'creator') and