diff --git a/mdx/_rules/check_future_0.xsl b/mdx/_rules/check_future_0.xsl
index fe932075..f503721c 100644
--- a/mdx/_rules/check_future_0.xsl
+++ b/mdx/_rules/check_future_0.xsl
@@ -21,8 +21,6 @@
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:idpdisc="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
 
-	xmlns:mdxURL="xalan://uk.ac.sdss.xalan.md.URLchecker"
-
 	xmlns="urn:oasis:names:tc:SAML:2.0:metadata">
 
 	<!--
diff --git a/mdx/_rules/check_future_1.xsl b/mdx/_rules/check_future_1.xsl
index 969be471..fef00c40 100644
--- a/mdx/_rules/check_future_1.xsl
+++ b/mdx/_rules/check_future_1.xsl
@@ -21,8 +21,6 @@
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:idpdisc="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
 
-	xmlns:mdxURL="xalan://uk.ac.sdss.xalan.md.URLchecker"
-
 	xmlns="urn:oasis:names:tc:SAML:2.0:metadata">
 
 	<!--
diff --git a/mdx/_rules/check_future_2.xsl b/mdx/_rules/check_future_2.xsl
index 6b4ef7db..c944e5b4 100644
--- a/mdx/_rules/check_future_2.xsl
+++ b/mdx/_rules/check_future_2.xsl
@@ -21,8 +21,6 @@
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:idpdisc="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
 
-	xmlns:mdxURL="xalan://uk.ac.sdss.xalan.md.URLchecker"
-
 	xmlns="urn:oasis:names:tc:SAML:2.0:metadata">
 
 	<!--
diff --git a/mdx/_rules/check_future_3.xsl b/mdx/_rules/check_future_3.xsl
index 3c47ad64..f0e655b9 100644
--- a/mdx/_rules/check_future_3.xsl
+++ b/mdx/_rules/check_future_3.xsl
@@ -21,8 +21,6 @@
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:idpdisc="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
 
-	xmlns:mdxURL="xalan://uk.ac.sdss.xalan.md.URLchecker"
-
 	xmlns="urn:oasis:names:tc:SAML:2.0:metadata">
 
 	<!--
diff --git a/mdx/_rules/check_future_4.xsl b/mdx/_rules/check_future_4.xsl
index feebe71d..7c8ae169 100644
--- a/mdx/_rules/check_future_4.xsl
+++ b/mdx/_rules/check_future_4.xsl
@@ -21,8 +21,6 @@
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:idpdisc="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
 
-	xmlns:mdxURL="xalan://uk.ac.sdss.xalan.md.URLchecker"
-
 	xmlns="urn:oasis:names:tc:SAML:2.0:metadata">
 
 	<!--