diff --git a/tools/fastswap-miles/miles.go b/tools/fastswap-miles/miles.go
index 3b396d33e..55cd40586 100644
--- a/tools/fastswap-miles/miles.go
+++ b/tools/fastswap-miles/miles.go
@@ -43,7 +43,7 @@ type ethRow struct {
 	surplus    string
 	gasCost    sql.NullString
 	inputToken string
-	blockTS    time.Time
+	blockTS    sql.NullTime
 }
 
 type erc20Row struct {
@@ -53,7 +53,7 @@ type erc20Row struct {
 	surplus    string
 	gasCost    sql.NullString
 	inputToken string
-	blockTS    time.Time
+	blockTS    sql.NullTime
 }
 
 type tokenBatch struct {