diff --git a/modules/practice/api_loot.go b/modules/practice/api_loot.go
index 3551ec48c..0acfc9d75 100644
--- a/modules/practice/api_loot.go
+++ b/modules/practice/api_loot.go
@@ -56,7 +56,7 @@ func (this *apiComp) Loot(session comm.IUserSession, req *pb.PracticeLootReq) (c
 			return
 		}
 		extra += tconfigure.Duration
-		froom.Pillarf.Prop = req.Teacher
+		froom.Pillarf.Teacher = req.Teacher
 	}
 	if req.Prop != "" {
 		if room.Knapsack[req.Prop] == 1 { //已经被使用