diff --git a/src/models/elements.model.mongodb.js b/src/models/elements.model.mongodb.js
index <HASH>..<HASH> 100644
--- a/src/models/elements.model.mongodb.js
+++ b/src/models/elements.model.mongodb.js
@@ -6,6 +6,8 @@ module.exports = function (forecast, element, app, options) {
   options.Model.ensureIndex({ forecastTime: 1 }, { expireAfterSeconds: element.interval || forecast.interval })

   // To perform geo queries on tiles

   options.Model.ensureIndex({ geometry: '2dsphere' })

+  // To perform $exists requests

+  options.Model.ensureIndex({ geometry: 1 })

   options.Model.ensureIndex({ x: 1, y: 1 })

   options.Model.ensureIndex({ forecastTime: 1, geometry: 1 })

 }
Added standard index on element geometry to increase performances