diff --git a/database/core.tsql b/database/core.tsql
index 21ae9cb1a25c67ade738dc31934211b340719d94..16d868c6811bc8b103be107c5650c3de0422152b 100644
--- a/database/core.tsql
+++ b/database/core.tsql
@@ -239,7 +239,9 @@ CREATE TABLE @PREFIX@accounting (
 
 	AcctStatusType		@INT_UNSIGNED@,
 
-	AcctTerminateCause	@INT_UNSIGNED@
+	AcctTerminateCause	@INT_UNSIGNED@,
+
+	PeriodKey		VARCHAR(255)
 ) @CREATE_TABLE_SUFFIX@;
 CREATE INDEX @PREFIX@accounting_idx1 ON @PREFIX@accounting (Username);