diff --git a/erp/expense/expense.go b/erp/expense/expense.go
index 15128ea..eac44e1 100644
--- a/erp/expense/expense.go
+++ b/erp/expense/expense.go
@@ -1,5 +1,6 @@
 package expense
 
 type Expense struct {
-	Cost cost
+	Cost  cost
+	Audit audit
 }
diff --git a/erp/request/request.go b/erp/request/request.go
index f7008d3..4dfb699 100644
--- a/erp/request/request.go
+++ b/erp/request/request.go
@@ -1,5 +1,6 @@
 package request
 
 type Request struct {
-	Cost cost
+	Cost  cost
+	Audit audit
 }