diff --git a/calendar/inc/class.calendar_merge.inc.php b/calendar/inc/class.calendar_merge.inc.php
index 6ea97bf61d..12ce8886d7 100644
--- a/calendar/inc/class.calendar_merge.inc.php
+++ b/calendar/inc/class.calendar_merge.inc.php
@@ -412,7 +412,7 @@ class calendar_merge extends Api\Storage\Merge
 			// Add in birthdays
 			if(strpos($repeat, 'day/birthdays') !== false)
 			{
-				$days[date('Ymd', $_date)][date('l',strtotime($day))][0]['$$day/birthdays$$'] = $this->get_birthdays($_date);
+				$days[date('Ymd', $_date)][date('l',strtotime($day))][0]['$$day/birthdays$$'] = $this->get_birthdays($day);
 			}
 		}
 		return $days[date('Ymd',$_date)][$plugin][0];
@@ -518,7 +518,7 @@ class calendar_merge extends Api\Storage\Merge
 			// Add in birthdays
 			if(strpos($repeat, 'day/birthdays') !== false)
 			{
-				$days[date('Ymd', $_date)][date('l',strtotime($day))][0]['$$day/birthdays$$'] = $this->get_birthdays($_date);
+				$days[date('Ymd', $_date)][date('l',strtotime($day))][0]['$$day/birthdays$$'] = $this->get_birthdays($day);
 			}
 		}
 		return $days[date('Ymd',$_date)][$plugin][0];
@@ -612,16 +612,15 @@ class calendar_merge extends Api\Storage\Merge
 
 	/**
 	 * Get replacement for birthdays placeholder
-	 * @param int|DateTime $_date
+	 * @param String $day Date in Ymd format
 	 */
-	protected function get_birthdays($_date)
+	protected function get_birthdays($day)
 	{
-		$day = date('Ymd', $_date);
 		$contacts = new Api\Contacts();
 		$birthdays = Array();
 		foreach($contacts->get_addressbooks() as $owner => $name)
 		{
-			$birthdays += $contacts->read_birthdays($owner, date('Y',$_date));
+			$birthdays += $contacts->read_birthdays($owner, substr($day, 0, 4));
 		}
 		return $birthdays[$day] ? implode(', ', array_column($birthdays[$day], 'name')) : '';
 	}
@@ -727,8 +726,10 @@ class calendar_merge extends Api\Storage\Merge
 		}
 		echo '<tr><td>{{table/day_n}} ... {{endtable}}</td><td>1 <= n <= 31</td></tr>';
 		echo '</table></td></tr>';
-		echo '<tr><td>{{day/date}}</td><td colspan="3">'.lang('Date for the day of the week, available for the first entry inside each day of week or daily table inside the selected range.').'</td></tr>';
-		echo '<tr><td>{{day/name}}</td><td colspan="3">'.lang('Name of the week (ex: Monday), available for the first entry inside each day of week or daily table inside the selected range.').'</td></tr>';
+		echo '<tr><td colspan="2">Available for the first entry inside each day of week or daily table inside the selected range:</td></tr>';
+		echo '<tr><td>{{day/date}}</td><td colspan="3">'.lang('Date for the day of the week').'</td></tr>';
+		echo '<tr><td>{{day/name}}</td><td colspan="3">'.lang('Name of the week (ex: Monday)').'</td></tr>';
+		echo '<tr><td>{{day/birthdays}}</td><td colspan="3">'.lang('Birthdays').'</td></tr>';
 
 		echo '<tr><td colspan="4"><h3>'.lang('General fields:')."</h3></td></tr>";
 		foreach(array(