diff --git a/core/code/map_data_render.js b/core/code/map_data_render.js
index 4ce9edca7..330164535 100644
--- a/core/code/map_data_render.js
+++ b/core/code/map_data_render.js
@@ -457,7 +457,7 @@ window.Render.prototype.createFieldEntity = function (ent) {
   // create placeholder portals for field corners. we already do links, but there are the odd case where this is useful
   for (var i = 0; i < 3; i++) {
     var p = data.points[i];
-    this.createPlaceholderPortalEntity(p.guid, p.latE6, p.lngE6, data.team, data.timestamp);
+    this.createPlaceholderPortalEntity(p.guid, p.latE6, p.lngE6, data.team, 0);
   }
 
   // check if entity already exists
diff --git a/core/code/portal_marker.js b/core/code/portal_marker.js
index 647e91a85..59ade0bd5 100644
--- a/core/code/portal_marker.js
+++ b/core/code/portal_marker.js
@@ -67,7 +67,7 @@ L.PortalMarker = L.CircleMarker.extend({
   willUpdate: function (details) {
     // details are from a placeholder
     if (details.level === undefined) {
-      // if team differs and corresponding link/field is more recent
+      // if team differs and corresponding link is more recent (ignore field)
       if (this._details.timestamp < details.timestamp && this._details.team !== details.team)
         return true;
       // in any other case