diff --git a/addressbook/add.php b/addressbook/add.php
index 75e8a46ecd..d11fe01a14 100755
--- a/addressbook/add.php
+++ b/addressbook/add.php
@@ -72,6 +72,10 @@
 		if (! $bday_month && ! $bday_day && ! $bday_year) {
 			$bday = "";
 		} else {
+			if (strlen ($bday_day) == 1)
+			{
+				$bday_day = "0".$bday_day;
+			}
 			$bday = "$bday_month/$bday_day/$bday_year";
 		}
 
diff --git a/addressbook/edit.php b/addressbook/edit.php
index 378fe76103..2fca3e1108 100755
--- a/addressbook/edit.php
+++ b/addressbook/edit.php
@@ -78,6 +78,10 @@
 		if (! $bday_month && ! $bday_day && ! $bday_year) {
 			$bday = "";
 		} else {
+			if (strlen ($bday_day) == 1)
+			{
+				$bday_day = "0".$bday_day;
+			}
 			$bday = "$bday_month/$bday_day/$bday_year";
 		}