diff --git a/lam/docs/manual-sources/howto.xml b/lam/docs/manual-sources/howto.xml
index 7d44f6df..6a4f46d1 100644
--- a/lam/docs/manual-sources/howto.xml
+++ b/lam/docs/manual-sources/howto.xml
@@ -612,6 +612,12 @@ Have fun!
                   <entry>ru_RU.utf8</entry>
                 </row>
 
+                <row>
+                  <entry>Slovakian</entry>
+
+                  <entry>sk_SK.utf8</entry>
+                </row>
+
                 <row>
                   <entry>Spanish</entry>