diff --git a/eth/filters/filter.go b/eth/filters/filter.go
index c16cf0628d..67e7f8587c 100644
--- a/eth/filters/filter.go
+++ b/eth/filters/filter.go
@@ -19,11 +19,12 @@ package filters
 import (
 	"context"
 	"errors"
+	"math/big"
+
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/bloombits"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/rpc"
-	"math/big"
 )
 
 // Filter can be used to retrieve and filter logs.