diff --git a/mdx/_rules/check_future_0.xsl b/mdx/_rules/check_future_0.xsl
index 569a8e85..fe932075 100644
--- a/mdx/_rules/check_future_0.xsl
+++ b/mdx/_rules/check_future_0.xsl
@@ -13,6 +13,7 @@
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 	xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
 	xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"
+	xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui"
 	xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
 	xmlns:shibmd="urn:mace:shibboleth:metadata:1.0"
 	xmlns:set="http://exslt.org/sets"
diff --git a/mdx/_rules/check_future_1.xsl b/mdx/_rules/check_future_1.xsl
index 676f3626..969be471 100644
--- a/mdx/_rules/check_future_1.xsl
+++ b/mdx/_rules/check_future_1.xsl
@@ -13,6 +13,7 @@
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 	xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
 	xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"
+	xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui"
 	xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
 	xmlns:shibmd="urn:mace:shibboleth:metadata:1.0"
 	xmlns:set="http://exslt.org/sets"
diff --git a/mdx/_rules/check_future_2.xsl b/mdx/_rules/check_future_2.xsl
index e8789585..bb36c031 100644
--- a/mdx/_rules/check_future_2.xsl
+++ b/mdx/_rules/check_future_2.xsl
@@ -13,6 +13,7 @@
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 	xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
 	xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"
+	xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui"
 	xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
 	xmlns:shibmd="urn:mace:shibboleth:metadata:1.0"
 	xmlns:set="http://exslt.org/sets"
diff --git a/mdx/_rules/check_future_3.xsl b/mdx/_rules/check_future_3.xsl
index 2b0adf50..3c47ad64 100644
--- a/mdx/_rules/check_future_3.xsl
+++ b/mdx/_rules/check_future_3.xsl
@@ -13,6 +13,7 @@
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 	xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
 	xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"
+	xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui"
 	xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
 	xmlns:shibmd="urn:mace:shibboleth:metadata:1.0"
 	xmlns:set="http://exslt.org/sets"
diff --git a/mdx/_rules/check_future_4.xsl b/mdx/_rules/check_future_4.xsl
index 476b65b4..feebe71d 100644
--- a/mdx/_rules/check_future_4.xsl
+++ b/mdx/_rules/check_future_4.xsl
@@ -13,6 +13,7 @@
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 	xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
 	xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"
+	xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui"
 	xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
 	xmlns:shibmd="urn:mace:shibboleth:metadata:1.0"
 	xmlns:set="http://exslt.org/sets"
diff --git a/mdx/_rules/check_future_5.xsl b/mdx/_rules/check_future_5.xsl
index bd07b278..326c22c2 100644
--- a/mdx/_rules/check_future_5.xsl
+++ b/mdx/_rules/check_future_5.xsl
@@ -12,6 +12,7 @@
 <xsl:stylesheet version="1.0"
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 	xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"
+	xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:idpdisc="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
 	xmlns:set="http://exslt.org/sets"
diff --git a/mdx/_rules/check_future_6.xsl b/mdx/_rules/check_future_6.xsl
index 3e955864..b312f48e 100644
--- a/mdx/_rules/check_future_6.xsl
+++ b/mdx/_rules/check_future_6.xsl
@@ -12,6 +12,7 @@
 <xsl:stylesheet version="1.0"
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 	xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"
+	xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:idpdisc="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
 	xmlns:set="http://exslt.org/sets"
diff --git a/mdx/_rules/check_future_7.xsl b/mdx/_rules/check_future_7.xsl
index 26274143..65f06792 100644
--- a/mdx/_rules/check_future_7.xsl
+++ b/mdx/_rules/check_future_7.xsl
@@ -12,6 +12,7 @@
 <xsl:stylesheet version="1.0"
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 	xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"
+	xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:idpdisc="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
 	xmlns:set="http://exslt.org/sets"
diff --git a/mdx/_rules/check_future_8.xsl b/mdx/_rules/check_future_8.xsl
index 10f50242..52030060 100644
--- a/mdx/_rules/check_future_8.xsl
+++ b/mdx/_rules/check_future_8.xsl
@@ -12,6 +12,7 @@
 <xsl:stylesheet version="1.0"
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 	xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"
+	xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:idpdisc="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
 	xmlns:set="http://exslt.org/sets"
diff --git a/mdx/_rules/check_future_9.xsl b/mdx/_rules/check_future_9.xsl
index 9f25b941..edfbec8e 100644
--- a/mdx/_rules/check_future_9.xsl
+++ b/mdx/_rules/check_future_9.xsl
@@ -12,6 +12,7 @@
 <xsl:stylesheet version="1.0"
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 	xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"
+	xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:idpdisc="urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"
 	xmlns:set="http://exslt.org/sets"