diff --git a/app/svc/svc_home_page.go b/app/svc/svc_home_page.go
index 41f4b97..8941652 100644
--- a/app/svc/svc_home_page.go
+++ b/app/svc/svc_home_page.go
@@ -22,7 +22,10 @@ func CalcTodayEggEnergyPriceRises(engine *xorm.Engine, now time.Time) (err error
 		return err, 0, false, "", ""
 	}
 	initialPrice = m.Price
-	yesterdayPrice, _ := decimal.NewFromString(m.Price)
+	if initialPrice == "" {
+		initialPrice = "1"
+	}
+	yesterdayPrice, _ := decimal.NewFromString(initialPrice)
 	coreDataDb := implement.NewEggEnergyCoreDataDb(db.Db)
 	coreData, err := coreDataDb.EggEnergyCoreDataGet()
 	if err != nil {