diff --git a/register_participants.inc.php b/register_participants.inc.php
index 317d6c1..7852884 100644
--- a/register_participants.inc.php
+++ b/register_participants.inc.php
@@ -50,7 +50,7 @@ function studentStatus($reg_id="")
 {
 	global $config;
 	if($config['participant_student_personal']=="yes")
-		$required_fields=array("firstname","lastname","address","city","postalcode","phone","email","grade","dateofbirth","schools_id");
+		$required_fields=array("firstname","lastname","address","city","postalcode","phone","email","grade","dateofbirth","schools_id","sex");
 	else
 		$required_fields=array("firstname","lastname","email","grade","schools_id");
 
@@ -70,9 +70,15 @@ function studentStatus($reg_id="")
 	{
 		foreach ($required_fields AS $req)
 		{
-			if(!$r->$req)
+			if($req=="dateofbirth")
 			{
-				return "incomplete";
+				if($r->$req=="0000-00-00" || !$r->$req)
+					return "incomplete";
+			}
+			else
+			{
+				if(!$r->$req)
+					return "incomplete";
 			}
 		}
 	}
diff --git a/register_participants_students.php b/register_participants_students.php
index 07dc36a..867c9c5 100644
--- a/register_participants_students.php
+++ b/register_participants_students.php
@@ -285,7 +285,7 @@ if($config['participant_student_personal']=="yes")
 	echo "<option $sel value=\"male\">".i18n("Male")."</option>\n";
 	if($studentinfo->sex=="female") $sel="selected=\"selected\""; else $sel="";
 	echo "<option $sel value=\"female\">".i18n("Female")."</option>\n";
-	echo "</select>";//.REQUIREDFIELD;
+	echo "</select>".REQUIREDFIELD;
 }
 	echo "</td>\n";
 	echo " <td></td><td></td>\n";