diff --git a/src-modules/module/costage/hilfstabellen/costage_st_studien_aggr_fuellen.sql b/src-modules/module/costage/hilfstabellen/costage_st_studien_aggr_fuellen.sql
index d26dc1d..a0d0b3a 100644
--- a/src-modules/module/costage/hilfstabellen/costage_st_studien_aggr_fuellen.sql
+++ b/src-modules/module/costage/hilfstabellen/costage_st_studien_aggr_fuellen.sql
@@ -119,7 +119,9 @@ hzb_note=(case when substring(H.hzb_note from 1 for 1) ~ '[0-9]'
 and substring(H.hzb_note from 2 for 1)  in (',','.')
 and substring(H.hzb_note from 3  for 1) ~ '[0-9]'
 and (substring(H.hzb_note from 4 for 1) ~ '[0-9]' or substring(H.hzb_note from 4 for 1)='')
-and length(H.hzb_note)<=4 then to_number(replace(H.hzb_note,',','.'),'9.99') else null::decimal(8,4) end ),
+and length(H.hzb_note)<=4 then to_number(replace(H.hzb_note,',','.'),'9.99') 
+when H.hzb_note ~ '[0-9]' then decval(H.hzb_note)
+else null::decimal(8,4) end ),
 hzb_land_sub_r_nr=H.hzb_land_sub_r_nr,
 hzb_land_nr=H.hzb_land_nr,
 hzb_jahr=H.hzb_jahr