diff --git a/datamodels/2.x/authent-cas/src/CASLoginExtension.php b/datamodels/2.x/authent-cas/src/CASLoginExtension.php
index e7f9ef0c2..3eb594ba8 100644
--- a/datamodels/2.x/authent-cas/src/CASLoginExtension.php
+++ b/datamodels/2.x/authent-cas/src/CASLoginExtension.php
@@ -232,7 +232,7 @@ class CASUserProvisioning
 		$bFound =  false;
 		if (!empty($sCASMemberships))
 		{
-			$sCASMemberOfName = Config::Get('cas_memberof_attribute_name');
+			$sCASMemberOfName = Config::Get('cas_memberof_attribute_name', 'memberOf');
 			if (phpCAS::hasAttribute($sCASMemberOfName))
 			{
 				// A list of groups is specified, the user must a be member of (at least) one of them to pass
@@ -341,7 +341,7 @@ class CASUserProvisioning
 	public static function UpdateUser(User $oUser)
 	{
 		$bCASUpdateProfiles = Config::Get('cas_update_profiles');
-		$sCASMemberOfName = Config::Get('cas_memberof_attribute_name');
+		$sCASMemberOfName = Config::Get('cas_memberof_attribute_name', 'memberOf');
 		if ($bCASUpdateProfiles && (phpCAS::hasAttribute($sCASMemberOfName)))
 		{
 			$aMemberOf = phpCAS::getAttribute($sCASMemberOfName);
diff --git a/datamodels/2.x/authent-cas/src/Config.php b/datamodels/2.x/authent-cas/src/Config.php
index 0e20707f9..085b79971 100644
--- a/datamodels/2.x/authent-cas/src/Config.php
+++ b/datamodels/2.x/authent-cas/src/Config.php
@@ -20,13 +20,17 @@ class Config
 	 *
 	 * @return mixed
 	 */
-	public static function Get($sName)
+	public static function Get($sName, $sDefaultValue = '')
 	{
 		$sValue = MetaModel::GetModuleSetting('authent-cas', $sName, '');
 		if (empty($sValue))
 		{
 			$sValue = MetaModel::GetConfig()->Get($sName);
 		}
+		if (empty($sValue))
+		{
+			return $sDefaultValue;
+		}
 
 		return $sValue;
 	}