diff --git a/modules/hunting/api_challenge.go b/modules/hunting/api_challenge.go
index 41def23c1..fd3e31254 100644
--- a/modules/hunting/api_challenge.go
+++ b/modules/hunting/api_challenge.go
@@ -36,7 +36,7 @@ func (this *apiComp) Challenge(session comm.IUserSession, req *pb.HuntingChallen
 		code = pb.ErrorCode_PagodaNotFound
 		return
 	}
-	if hunting.ChallengeCount+hunting.BuyCount > this.module.configure.GetGlobalConf().HuntingNum {
+	if hunting.ChallengeCount > this.module.configure.GetGlobalConf().HuntingNum+hunting.BuyCount {
 		code = pb.ErrorCode_HuntingMaxChallengeCount
 		return
 	}
diff --git a/modules/viking/api_challenge.go b/modules/viking/api_challenge.go
index 535aa689a..108912f57 100644
--- a/modules/viking/api_challenge.go
+++ b/modules/viking/api_challenge.go
@@ -37,7 +37,7 @@ func (this *apiComp) Challenge(session comm.IUserSession, req *pb.VikingChalleng
 		return
 	}
 
-	if viking.ChallengeCount+viking.BuyCount > this.module.configure.GetGlobalConf().VikingNum {
+	if viking.ChallengeCount > this.module.configure.GetGlobalConf().VikingNum+viking.BuyCount {
 		code = pb.ErrorCode_VikingMaxChallengeCount
 		return
 	}