diff --git a/pkg/bbgo/config.go b/pkg/bbgo/config.go
index 16ddbdd9e..a54d3a4d5 100644
--- a/pkg/bbgo/config.go
+++ b/pkg/bbgo/config.go
@@ -12,7 +12,6 @@ import (
 	"github.com/pkg/errors"
 	"gopkg.in/yaml.v3"
 
-	"github.com/c9s/bbgo/pkg/datasource/csvsource"
 	"github.com/c9s/bbgo/pkg/datatype"
 	"github.com/c9s/bbgo/pkg/dynamic"
 	"github.com/c9s/bbgo/pkg/fixedpoint"
@@ -151,8 +150,8 @@ type Backtest struct {
 	Sessions []string                   `json:"sessions" yaml:"sessions"`
 
 	// sync 1 second interval KLines
-	SyncSecKLines bool                 `json:"syncSecKLines,omitempty" yaml:"syncSecKLines,omitempty"`
-	CsvSource     *csvsource.CsvConfig `json:"csvConfig,omitempty" yaml:"csvConfig,omitempty"`
+	SyncSecKLines bool             `json:"syncSecKLines,omitempty" yaml:"syncSecKLines,omitempty"`
+	CsvSource     *CsvSourceConfig `json:"csvConfig,omitempty" yaml:"csvConfig,omitempty"`
 }
 
 func (b *Backtest) GetAccount(n string) BacktestAccount {
@@ -708,3 +707,8 @@ func reUnmarshal(conf interface{}, tpe interface{}) (interface{}, error) {
 
 	return val.Elem().Interface(), nil
 }
+
+type CsvSourceConfig struct {
+	Market      types.MarketType     `json:"market"`
+	Granularity types.MarketDataType `json:"granularity"`
+}
diff --git a/pkg/datasource/csvsource/types.go b/pkg/datasource/csvsource/types.go
index 215889c0d..eceb3620f 100644
--- a/pkg/datasource/csvsource/types.go
+++ b/pkg/datasource/csvsource/types.go
@@ -5,11 +5,6 @@ import (
 	"github.com/c9s/bbgo/pkg/types"
 )
 
-type CsvConfig struct {
-	Market      types.MarketType     `json:"market"`
-	Granularity types.MarketDataType `json:"granularity"`
-}
-
 type CsvTick struct {
 	Exchange        types.ExchangeName `json:"exchange"`
 	Market          types.MarketType   `json:"market"`