diff --git a/api/controller/SystemMember.go b/api/controller/SystemMember.go
index 603f7a7..84a3acd 100644
--- a/api/controller/SystemMember.go
+++ b/api/controller/SystemMember.go
@@ -51,6 +51,10 @@ func (b *SystemMember) GetSystemMemberLeast(c *gin.Context) {
 
 	var firstTimePrice *float64
 	for _, member := range systemMembers {
+		if member.FirstTimePrice == nil {
+			continue
+		}
+
 		if firstTimePrice == nil {
 			firstTimePrice = member.FirstTimePrice
 			continue