diff --git a/kpi/serializers/v2/paired_data.py b/kpi/serializers/v2/paired_data.py
index 2f4e719e21..215e84ffc8 100644
--- a/kpi/serializers/v2/paired_data.py
+++ b/kpi/serializers/v2/paired_data.py
@@ -226,7 +226,7 @@ def __save(self, validated_data):
         source = validated_data.pop('source', None)
         if not self.instance:
             self.instance = PairedData(
-                source_uid=source.uid,
+                source_asset_or_uid=source.uid,
                 asset=asset,
                 **validated_data
             )