diff --git a/api/templates/default/etemplate2.css b/api/templates/default/etemplate2.css
index b42ae904b7..cc79d4a1c4 100644
--- a/api/templates/default/etemplate2.css
+++ b/api/templates/default/etemplate2.css
@@ -4022,7 +4022,8 @@ body .flatpickr-calendar {
 }
 
 /** Holidays & birthdays **/
-div.flatpickr-calendar .calHoliday, div.flatpickr-calendar .calBirthday {
+div.flatpickr-calendar .calHoliday /*, div.flatpickr-calendar .calBirthday*/
+{
     background-color: rgba(103, 159, 210, 0.5);
 }
 
diff --git a/calendar/js/SidemenuDate.ts b/calendar/js/SidemenuDate.ts
index d114247a23..c6db86be28 100644
--- a/calendar/js/SidemenuDate.ts
+++ b/calendar/js/SidemenuDate.ts
@@ -42,6 +42,7 @@ export class SidemenuDate extends Et2Date
 		this._onDayCreate = this._onDayCreate.bind(this);
 		this._handleChange = this._handleChange.bind(this);
 		this._handleDayHover = this._handleDayHover.bind(this);
+		this._clearHover = this._clearHover.bind(this);
 		this._updateGoButton = this._updateGoButton.bind(this);
 	}
 
@@ -61,6 +62,7 @@ export class SidemenuDate extends Et2Date
 		if(this._instance.daysContainer !== undefined)
 		{
 			this._instance.weekNumbers.removeEventListener("mouseover", this._handleDayHover);
+			this._instance.weekNumbers.removeEventListener("mouseout", this._clearHover);
 		}
 	}
 
@@ -79,6 +81,7 @@ export class SidemenuDate extends Et2Date
 		if(this._instance.daysContainer !== undefined)
 		{
 			this._instance.weekNumbers.addEventListener("mouseover", this._handleDayHover);
+			this._instance.weekNumbers.addEventListener("mouseout", this._clearHover);
 		}
 
 		// Customise next / prev buttons