diff --git a/pkg/bbgo/consts.go b/pkg/bbgo/consts.go
new file mode 100644
index 000000000..5a627b94b
--- /dev/null
+++ b/pkg/bbgo/consts.go
@@ -0,0 +1,5 @@
+package bbgo
+
+import "github.com/c9s/bbgo/pkg/fixedpoint"
+
+var one = fixedpoint.One
diff --git a/pkg/bbgo/exit_protective_stop_loss.go b/pkg/bbgo/exit_protective_stop_loss.go
index 6b3a064d5..fbba25768 100644
--- a/pkg/bbgo/exit_protective_stop_loss.go
+++ b/pkg/bbgo/exit_protective_stop_loss.go
@@ -38,8 +38,6 @@ type ProtectiveStopLoss struct {
 	stopLossOrder *types.Order
 }
 
-var one = fixedpoint.One
-
 func (s *ProtectiveStopLoss) Subscribe(session *ExchangeSession) {
 	// use 1m kline to handle roi stop
 	session.Subscribe(types.KLineChannel, s.Symbol, types.SubscribeOptions{Interval: types.Interval1m})