diff --git a/PRS/PRS_TRI.SRC b/PRS/PRS_TRI.SRC
index f609e4dd..9ed1e2b9 100644
--- a/PRS/PRS_TRI.SRC
+++ b/PRS/PRS_TRI.SRC
@@ -249,6 +249,11 @@ BEGIN
             EXCEPTION
                 WHEN OTHERS THEN NULL;
             END;
+
+            UPDATE mld_melding
+            SET mld_melding_behandelaar_key = NULL, mld_melding_behandelaar2_key = NULL
+             WHERE mld_melding_behandelaar_key = :old.prs_perslid_key OR mld_melding_behandelaar2_key = :old.prs_perslid_key;
+
             -- Wis alle authenticatiemogelijkheden
             :new.prs_perslid_oslogin := '';
             :new.prs_perslid_oslogin2 := '';