diff --git a/pisi-spec.rng b/pisi-spec.rng
index 2fd19f20..d8e95ee1 100644
--- a/pisi-spec.rng
+++ b/pisi-spec.rng
@@ -1136,6 +1136,16 @@
                 <value>locale:uz</value>
                 <value>locale:uz@cyrillic</value>
                 <value>locale:ne</value>
+                <value>locale:xh</value>
+                <value>locale:nso</value>
+                <value>locale:vi</value>
+                <value>locale:zu</value>
+                <value>locale:az</value>
+                <value>locale:th</value>
+                <value>locale:ven</value>
+                <value>locale:fo</value>
+                <value>locale:ro</value>
+                <value>locale:ko</value>
             </choice>
         </element>
     </define>