diff --git a/website/common/script/cron.js b/website/common/script/cron.js
index b3171976c7..7195fc815c 100644
--- a/website/common/script/cron.js
+++ b/website/common/script/cron.js
@@ -140,7 +140,7 @@ export function shouldDo (day, dailyTask, options = {}) {
   } else if (dailyTask.frequency === 'monthly') {
     let schedule = moment(startDate).recur();
 
-    let differenceInMonths = moment(day).month() + 1 - moment(startDate).month() + 1;
+    let differenceInMonths = moment(day).month() - moment(startDate).month();
     let matchEveryX = differenceInMonths % dailyTask.everyX === 0;
 
     if (dailyTask.weeksOfMonth && dailyTask.weeksOfMonth.length > 0) {
diff --git a/website/server/libs/taskManager.js b/website/server/libs/taskManager.js
index 47d2811f58..3b2ea69531 100644
--- a/website/server/libs/taskManager.js
+++ b/website/server/libs/taskManager.js
@@ -26,7 +26,7 @@ async function _validateTaskAlias (tasks, res) {
 export function setNextDue (task, user) {
   if (task.type !== 'daily') return;
 
-  let optionsForShouldDo = cloneDeep(user.preferences.toObject());
+  let optionsForShouldDo = user.preferences.toObject();
   task.isDue = shared.shouldDo(Date.now(), task, optionsForShouldDo);
   optionsForShouldDo.nextDue = true;
   let nextDue = shared.shouldDo(Date.now(), task, optionsForShouldDo);