diff --git a/index.js b/index.js
index c4636e3..b8e7ae0 100644
--- a/index.js
+++ b/index.js
@@ -238,10 +238,19 @@ server.get('/list_changes', bodyParser.json(), function(req, res) {
     var callback = function(arg) {
         sql = arg;
 
+        //parse request body into a where clause
+        ({ c, w, d } = build_where(req, c, w, d, args));
+
+
+        //if there was no body sent, return with nothing
+        if (c == 1) {
+            res.send("no body was sent");
+            return;
+        }
         console.log(new Date().toISOString() + "-------------------------list changes:------------------------------")
         console.log(req.body);
         //parse the where clause into the main sql statement
-        sql = sql.replace(new RegExp("replace_user", 'g'), req.body.quota_rep_descr)
+        sql = sql.replace(new RegExp("where_clause", 'g'), w)
             //execute the sql and send the result
         console.log(sql);
         Postgres.FirstRow(sql, [], res)
diff --git a/route_sql/list_changes.sql b/route_sql/list_changes.sql
index b00a269..a8f4589 100644
--- a/route_sql/list_changes.sql
+++ b/route_sql/list_changes.sql
@@ -14,7 +14,7 @@ from
     inner join rlarp.osm_pool on
         id = logid
 WHERE
-    quota_rep_descr = 'replace_user'
+    where_clause
     AND tag <> 'Initial Build'
 group BY
     ol.doc->>'user'