diff --git a/worldsrv/scene.go b/worldsrv/scene.go
index d28a99b..f6cef59 100644
--- a/worldsrv/scene.go
+++ b/worldsrv/scene.go
@@ -341,7 +341,10 @@ func (this *Scene) PlayerEnter(p *Player, pos int, ischangeroom bool) bool {
 				//离场金币
 				leaverng := this.dbGameFree.GetRobotLimitCoin()
 				if len(leaverng) >= 2 {
-					leaveCoin = leaverng[0] + rand.Int63n(leaverng[1]-leaverng[0])
+					rangeValue := leaverng[1] - leaverng[0]
+					if rangeValue > 0 {
+						leaveCoin = leaverng[0] + rand.Int63n(rangeValue)
+					}
 				}
 			}