diff --git a/installer/data/mysql/atomicupdate/bug_20912.sql b/installer/data/mysql/atomicupdate/bug_20912.sql
new file mode 100644
index 0000000000..459c9b30e3
--- /dev/null
+++ b/installer/data/mysql/atomicupdate/bug_20912.sql
@@ -0,0 +1 @@
+ALTER TABLE itemtypes ADD COLUMN rental_charge_daily decimal(28,6) default NULL AFTER rentalcharge;
diff --git a/installer/data/mysql/kohastructure.sql b/installer/data/mysql/kohastructure.sql
index 2ef6860178..9671c0ecf9 100644
--- a/installer/data/mysql/kohastructure.sql
+++ b/installer/data/mysql/kohastructure.sql
@@ -951,6 +951,7 @@ CREATE TABLE `itemtypes` ( -- defines the item types
   itemtype varchar(10) NOT NULL default '', -- unique key, a code associated with the item type
   description LONGTEXT, -- a plain text explanation of the item type
   rentalcharge decimal(28,6) default NULL, -- the amount charged when this item is checked out/issued
+  rental_charge_daily decimal(28,6) default NULL, -- the amount charged for each day between checkout date and due date
   defaultreplacecost decimal(28,6) default NULL, -- default replacement cost
   processfee decimal(28,6) default NULL, -- default text be recorded in the column note when the processing fee is applied
   notforloan smallint(6) default NULL, -- 1 if the item is not for loan, 0 if the item is available for loan