diff --git a/conf/attribute-filter.xml b/conf/attribute-filter.xml
index de59b88..b7d84cf 100644
--- a/conf/attribute-filter.xml
+++ b/conf/attribute-filter.xml
@@ -112,7 +112,7 @@
         <AttributeRule attributeID="givenName">
             <PermitValueRule xsi:type="ANY" />
         </AttributeRule>
-        <AttributeRule attributeID="surname">
+        <AttributeRule attributeID="sn">
             <PermitValueRule xsi:type="ANY" />
         </AttributeRule>
         <AttributeRule attributeID="displayName">
@@ -137,7 +137,7 @@
         <AttributeRule attributeID="givenName">
             <PermitValueRule xsi:type="ANY" />
         </AttributeRule>
-        <AttributeRule attributeID="surname">
+        <AttributeRule attributeID="sn">
             <PermitValueRule xsi:type="ANY" />
         </AttributeRule>
         <AttributeRule attributeID="displayName">