diff --git a/src-modules/module/xcube/schluesseltabellen/xcube_install.sql b/src-modules/module/xcube/schluesseltabellen/xcube_install.sql
index 7197aec..767410e 100644
--- a/src-modules/module/xcube/schluesseltabellen/xcube_install.sql
+++ b/src-modules/module/xcube/schluesseltabellen/xcube_install.sql
@@ -384,9 +384,13 @@
       "foreignkey_cap":"druck",
       "foreignkey_cond":"astat is not null",
       "sortfield":"druck"},
-      
-      
-      
+      {"maskeninfo_id":21200,
+      "name":"alter", 
+      "caption":"Alter",
+      "is_sicht":2,
+      "is_virtual":1,
+      "vcsql":"update tmp_rohdaten set alter = trunc(((select stichtag from sva_stichtag where tid=tmp_rohdaten.stichtag) - geburtsdatum) / 365.25 , 0)"},
+       
       <#-- Primärbuchungswürfel -->
       {"maskeninfo_id":21500,
       "name":"jahr",