diff --git a/client/idrepo/console/src/main/java/org/apache/syncope/client/console/wizards/any/PlainAttrs.java b/client/idrepo/console/src/main/java/org/apache/syncope/client/console/wizards/any/PlainAttrs.java
index bbfb9b0f3d..81b676c28c 100644
--- a/client/idrepo/console/src/main/java/org/apache/syncope/client/console/wizards/any/PlainAttrs.java
+++ b/client/idrepo/console/src/main/java/org/apache/syncope/client/console/wizards/any/PlainAttrs.java
@@ -37,6 +37,7 @@
 import org.apache.syncope.common.lib.to.GroupableRelatableTO;
 import org.apache.syncope.common.lib.to.MembershipTO;
 import org.apache.syncope.common.lib.to.PlainSchemaTO;
+import org.apache.syncope.common.lib.to.RelatableTO;
 import org.apache.syncope.common.lib.to.RelationshipTO;
 import org.apache.syncope.common.lib.to.UserTO;
 import org.apache.syncope.common.lib.types.AttrSchemaType;
@@ -229,7 +230,7 @@ protected void setAttrs(final MembershipTO membershipTO) {
 
     @Override
     protected void setAttrs(final RelationshipTO relationshipTO) {
-        Map<String, Attr> attrMap = GroupableRelatableTO.class.cast(attributable).
+        Map<String, Attr> attrMap = RelatableTO.class.cast(attributable).
                 getRelationship(relationshipTO.getType(), relationshipTO.getOtherEndKey()).
                 map(gr -> EntityTOUtils.buildAttrMap(gr.getPlainAttrs())).
                 orElseGet(HashMap::new);