diff --git a/edm-cmdi/edm2cmdi.xsl b/edm-cmdi/edm2cmdi.xsl
index 39ca91e..8d1de8c 100644
--- a/edm-cmdi/edm2cmdi.xsl
+++ b/edm-cmdi/edm2cmdi.xsl
@@ -71,10 +71,10 @@
         <xsl:variable name="selfLink">
             <xsl:choose>
                 <xsl:when test="edm:EuropeanaAggregation">
-                    <xsl:value-of select="replace(edm:EuropeanaAggregation/@rdf:about, '^.*://(data.europeana.eu/)?', 'europeana:')"/>
+                    <xsl:value-of select="func:selfLinkForRecord(edm:EuropeanaAggregation/@rdf:about)"/>
                 </xsl:when>
                 <xsl:when test="edm:ProvidedCHO">
-                    <xsl:value-of select="replace(edm:ProvidedCHO/@rdf:about, '^.*://(data.europeana.eu/)?', 'europeana:')"/>
+                    <xsl:value-of select="func:selfLinkForRecord(edm:ProvidedCHO/@rdf:about)"/>
                 </xsl:when>
             </xsl:choose>
         </xsl:variable>
@@ -705,6 +705,11 @@
         <xsl:value-of select="concat($node/local-name(), '_', generate-id($node))"/>
     </xsl:function>
     
+    <xsl:function name="func:selfLinkForRecord">
+        <xsl:param name="id" />
+        <xsl:value-of select="replace($id, '^.*://(data.europeana.eu/)?', 'europeana:')"/>
+    </xsl:function>
+    
     <xsl:function name="func:sanitiseCollectionName">
         <xsl:param name="collectionName" />