diff --git a/platform/csv/pool.go b/platform/csv/pool.go
index f3fea183..bc03a425 100644
--- a/platform/csv/pool.go
+++ b/platform/csv/pool.go
@@ -30,7 +30,8 @@ import (
 type headerPoolEnum int
 
 const (
-	headerPoolAddressLocality headerPoolEnum = iota
+	headerPoolUnknown headerPoolEnum = iota
+	headerPoolAddressLocality
 	headerPoolAddressPostalCode
 	headerPoolAddressRegion
 	headerPoolAddressStreet