diff --git a/mdx/uk/README.md b/mdx/uk/README.md
index 18455dee..ac44d347 100644
--- a/mdx/uk/README.md
+++ b/mdx/uk/README.md
@@ -28,9 +28,9 @@ before being included in the `export` version consumed by interfederation partne
 
 ### Export Preview Aggregate vs. Export Aggregate
 
-Status (2017-02-10):
+Status (2017-02-13):
 
-* these aggregates are currently identical
+* The export preview aggregate normalises the `xenc` namespace to not use a prefix, as it is not very commonly used. (2017-02-13)
 
 ## Production Maturity Pipeline
 
@@ -59,15 +59,14 @@ when it appeared in the fallback aggregate, which would be too late to take corr
 
 ### Test Aggregate vs. Production Aggregate
 
-Status (2017-02-08):
+Status (2017-02-13):
 
 * the test aggregate implements a _blacklisting_ approach to entity attributes imported from eduGAIN,
 while the production aggregate implements the traditional entity attribute _whitelist_.
-* The test aggregate normalises the `xenc` namespace to not use a prefix, as it is not very commonly used.
 
 ### Fallback Aggregate vs. Production Aggregate
 
-Status (2017-02-08):
+Status (2017-02-13):
 
 * The production aggregate defines the `saml` namespace prefix (used by entity attributes) on the document element
 instead of in each SAML `<Attribute>`. (2017-02-08)
@@ -76,3 +75,4 @@ instead of in each `<EntityAttributes>` element. (2017-02-08)
 * the production aggregate no longer implements the "key use" fixup required for pre-1.3.1 Shibboleth SPs.
 This adds the `use="signing"` XML attribute to `<KeyDescriptor>` elements present in IdP metadata
 without a `use` attribute. It is not needed for later releases of the Shibboleth SP. (2017-02-10)
+* The production aggregate normalises the `xenc` namespace to not use a prefix, as it is not very commonly used. (2017-02-13)
diff --git a/mdx/uk/ns_norm_export_preview.xsl b/mdx/uk/ns_norm_export_preview.xsl
index 59e402e6..cb79a27c 100644
--- a/mdx/uk/ns_norm_export_preview.xsl
+++ b/mdx/uk/ns_norm_export_preview.xsl
@@ -32,8 +32,9 @@
 	xmlns:shibmd="urn:mace:shibboleth:metadata:1.0"
 	xmlns:ukfedlabel="http://ukfederation.org.uk/2006/11/label"
 	xmlns:wayf="http://sdss.ac.uk/2006/06/WAYF"
+	xmlns:xenc="http://www.w3.org/2001/04/xmlenc#"
 	
-	exclude-result-prefixes="alg md ukfedlabel wayf"
+	exclude-result-prefixes="alg md ukfedlabel wayf xenc"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 	xmlns="urn:oasis:names:tc:SAML:2.0:metadata">
@@ -107,5 +108,26 @@
 		</xsl:element>
 	</xsl:template>
 	
+
+	<!--
+        ***************************************
+        ***                                 ***
+        ***   X E N C   N A M E S P A C E   ***
+        ***                                 ***
+        ***************************************
+    -->
+
+
+	<!--
+        xenc:*
+        
+        Normalise namespace to not use a prefix.
+    -->
+	<xsl:template match="xenc:*">
+		<xsl:element name="{local-name()}" namespace="http://www.w3.org/2001/04/xmlenc#">
+			<xsl:apply-templates select="node()|@*"/>
+		</xsl:element>
+	</xsl:template>	
+	
 	
 </xsl:stylesheet>
diff --git a/mdx/uk/ns_norm_uk.xsl b/mdx/uk/ns_norm_uk.xsl
index fb3d7896..20930f67 100644
--- a/mdx/uk/ns_norm_uk.xsl
+++ b/mdx/uk/ns_norm_uk.xsl
@@ -38,8 +38,9 @@
 	xmlns:shibmd="urn:mace:shibboleth:metadata:1.0"
 	xmlns:ukfedlabel="http://ukfederation.org.uk/2006/11/label"
 	xmlns:wayf="http://sdss.ac.uk/2006/06/WAYF"
+	xmlns:xenc="http://www.w3.org/2001/04/xmlenc#"
 	
-	exclude-result-prefixes="alg md wayf"
+	exclude-result-prefixes="alg md wayf xenc"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 	xmlns="urn:oasis:names:tc:SAML:2.0:metadata">
@@ -113,5 +114,26 @@
 		</xsl:element>
 	</xsl:template>
 	
+
+	<!--
+        ***************************************
+        ***                                 ***
+        ***   X E N C   N A M E S P A C E   ***
+        ***                                 ***
+        ***************************************
+    -->
+
+
+	<!--
+        xenc:*
+        
+        Normalise namespace to not use a prefix.
+    -->
+	<xsl:template match="xenc:*">
+		<xsl:element name="{local-name()}" namespace="http://www.w3.org/2001/04/xmlenc#">
+			<xsl:apply-templates select="node()|@*"/>
+		</xsl:element>
+	</xsl:template>	
+	
 	
 </xsl:stylesheet>