diff --git a/helm/3d/config/mappings.py b/helm/3d/config/mappings.py
index b3fb29366..05e21604c 100644
--- a/helm/3d/config/mappings.py
+++ b/helm/3d/config/mappings.py
@@ -20,6 +20,7 @@
         'pycsw:title': 'product_name',
         'pycsw:productVersion': 'product_version',
         'pycsw:productType': 'product_type',
+        'pycsw:productSubType': 'product_sub_type',
         'pycsw:abstract': 'description',
         'pycsw:creationDate': 'creation_date',
         'pycsw:updateDate': 'update_date',
diff --git a/pycsw/plugins/profiles/mc_3d/mc_3d.py b/pycsw/plugins/profiles/mc_3d/mc_3d.py
index e0fefb5fd..a035be07b 100644
--- a/pycsw/plugins/profiles/mc_3d/mc_3d.py
+++ b/pycsw/plugins/profiles/mc_3d/mc_3d.py
@@ -28,6 +28,7 @@ def __init__(self, model, namespaces, context):
                         'mc:productName': Queryable(context.md_core_model['mappings']['pycsw:title'], 'mc:productName'),
                         'mc:productVersion': Queryable(context.md_core_model['mappings']['pycsw:productVersion'], 'mc:productVersion'),
                         'mc:productType': Queryable(context.md_core_model['mappings']['pycsw:productType'], 'mc:productType'),
+                        'mc:productSubType': Queryable(context.md_core_model['mappings']['pycsw:productSubType'], 'mc:productSubType'),
                         'mc:description': Queryable(context.md_core_model['mappings']['pycsw:abstract'], 'mc:description'),
                         'mc:creationDateUTC': Queryable(context.md_core_model['mappings']['pycsw:creationDate'], 'mc:creationDateUTC'),
                         'mc:updateDateUTC': Queryable(context.md_core_model['mappings']['pycsw:updateDate'], 'mc:updateDateUTC'),