diff --git a/MRUS/mrus.sql b/MRUS/mrus.sql
index a99e07992..f86266913 100644
--- a/MRUS/mrus.sql
+++ b/MRUS/mrus.sql
@@ -282,7 +282,7 @@ AS
            t."WAARDE3",
            fg.prs_perslid_key
       FROM cad_v_thema_deel_res_datum t, res_deel rd, fac_v_webgebruiker fg
-     WHERE     t.ins_deel_key = rd.res_deel_key
+     WHERE     t.ins_deel_key = rd.res_ins_deel_key
            AND fg.ins_discipline_key = rd.res_discipline_key
            AND fg.fac_functie_key = 143;