diff --git a/artemis_sqlmap/FeatureProp.xml b/artemis_sqlmap/FeatureProp.xml
index d443345ddc7cad8d03815092c9cdd9d17b656fdf..461b96ee69d76258d0ce4f8b6cf202dee815422e 100644
--- a/artemis_sqlmap/FeatureProp.xml
+++ b/artemis_sqlmap/FeatureProp.xml
@@ -25,7 +25,8 @@
      </resultMap>
      
     <resultMap id="map-featureprop" 
-               class="FeatureProp">
+               class="FeatureProp" groupBy="featurePropId">
+		<result property="featurePropId" column="featureprop_id" />
         <result property="value" column="value" />
         <result property="rank"  column="prop_rank" />
         <result property="cvTerm.cvTermId" column="prop_type_id" />