diff --git a/src/Bundle/ChillCalendarBundle/Resources/public/vuejs/Calendar/store/actions.js b/src/Bundle/ChillCalendarBundle/Resources/public/vuejs/Calendar/store/actions.js
index 1e1faab19..00e78143b 100644
--- a/src/Bundle/ChillCalendarBundle/Resources/public/vuejs/Calendar/store/actions.js
+++ b/src/Bundle/ChillCalendarBundle/Resources/public/vuejs/Calendar/store/actions.js
@@ -10,6 +10,8 @@ import {
 } from './../api';
 import {datetimeToISO} from 'ChillMainAssets/chill/js/date';
 
+const fetchings = new Set();
+
 export default {
     setCurrentDatesView({ commit, dispatch }, {start, end}) {
       commit('setCurrentDatesView', {start, end});
@@ -23,6 +25,15 @@ export default {
 
       let promises = [];
       for (const uid of state.currentView.users.keys()) {
+        let unique = `${uid}, ${state.currentView.start.toISOString()}, ${state.currentView.end.toISOString()}`;
+
+        if (fetchings.has(unique)) {
+          console.log('prevent from fetching for a user', unique);
+          continue;
+        }
+
+        fetchings.add(unique);
+
         promises.push(
           dispatch(
             'fetchCalendarRangeForUser',