diff --git a/static/js/map.js b/static/js/map.js
index b5df921..485f8f1 100644
--- a/static/js/map.js
+++ b/static/js/map.js
@@ -146,7 +146,12 @@ function update_wikidata(check_for_missing = true) {
     }
 
     if (missing_qids.length) {
-      var params = { qids: missing_qids.join(",") };
+      var c = map.getCenter();
+      var params = {
+        qids: missing_qids.join(","),
+        lat: c.lat.toFixed(5),
+        lon: c.lng.toFixed(5),
+      };
       axios.get(missing_url, { params: params }).then((response) => {
         response.data.isa_count.forEach((isa) => {
           isa_labels[isa.qid] = isa.label;
@@ -437,7 +442,6 @@ function open_detail(qid) {
 
     var item_osm_candidates_url = `/api/1/item/${qid}/candidates`;
     var bounds = map.getBounds();
-
     var params = { bounds: bounds.toBBoxString() };
 
     axios
diff --git a/web_view.py b/web_view.py
index 40d85f8..7418b02 100755
--- a/web_view.py
+++ b/web_view.py
@@ -177,7 +177,7 @@ def get_markers(all_items):
             "markers": locations,
             "image_list": image_filenames,
             "street_address": street_address,
-            "isa_list": [v["id"] for v in item.get_claim("P31")],
+            "isa_list": [v["id"] for v in item.get_claim("P31") if v],
         }
         items.append(item)