diff --git a/lib/Db/TimelineQueryMap.php b/lib/Db/TimelineQueryMap.php
index d051866a..7a93c052 100644
--- a/lib/Db/TimelineQueryMap.php
+++ b/lib/Db/TimelineQueryMap.php
@@ -42,9 +42,8 @@ trait TimelineQueryMap
         $lat = $query->createFunction('AVG(c.lat) AS lat');
         $lon = $query->createFunction('AVG(c.lon) AS lon');
         $count = $query->createFunction('COUNT(m.fileid) AS count');
-        $update = $query->createFunction('MAX(c.last_update) as u');
 
-        $query->select($lat, $lon, $update, $count)
+        $query->select($lat, $lon, $count)
             ->from('memories_mapclusters', 'c')
         ;
 
@@ -81,7 +80,6 @@ trait TimelineQueryMap
                     (float) $cluster['lon'],
                 ],
                 'count' => (float) $cluster['count'],
-                'u' => (int) $cluster['u'],
             ];
             if (\array_key_exists('id', $cluster)) {
                 $c['id'] = (int) $cluster['id'];
diff --git a/src/components/top-matter/MapSplitMatter.vue b/src/components/top-matter/MapSplitMatter.vue
index d8ec3218..17508ee8 100644
--- a/src/components/top-matter/MapSplitMatter.vue
+++ b/src/components/top-matter/MapSplitMatter.vue
@@ -55,7 +55,6 @@ const STAMEN_ATTRIBUTION = `Map tiles by <a href="http://stamen.com">Stamen Desi
 
 type IMarkerCluster = {
   id?: number;
-  u?: any;
   center: [number, number];
   count: number;
   preview?: IPhoto;
@@ -129,11 +128,7 @@ export default defineComponent({
     },
 
     clusterPreviewUrl(cluster: IMarkerCluster) {
-      let url = getPreviewUrl(cluster.preview, false, 256);
-      if (cluster.u) {
-        url += `?u=${cluster.u}`;
-      }
-      return url;
+      return getPreviewUrl(cluster.preview, false, 256);
     },
 
     zoomTo(cluster: IMarkerCluster) {