diff --git a/modules/practice/api_receive.go b/modules/practice/api_receive.go
index 284823ddb..e509d45bd 100644
--- a/modules/practice/api_receive.go
+++ b/modules/practice/api_receive.go
@@ -193,7 +193,7 @@ func (this *apiComp) Receive(session comm.IUserSession, req *pb.PracticeReceiveR
 						ants1[index].N++
 					}
 				}
-
+				room.Knapsack[pillar.Teacher].State = 0
 			}
 		}
 		if pconfigure != nil {
@@ -235,6 +235,7 @@ func (this *apiComp) Receive(session comm.IUserSession, req *pb.PracticeReceiveR
 						ants2[index].N++
 					}
 				}
+				room.Knapsack[pillar.Prop].State = 0
 			}
 		}
 	}
@@ -245,8 +246,7 @@ func (this *apiComp) Receive(session comm.IUserSession, req *pb.PracticeReceiveR
 	if errdata = this.module.DispenseRes(session, append(ants1, ants2...), true); errdata != nil {
 		return
 	}
-	room.Knapsack[pillar.Teacher].State = 0
-	room.Knapsack[pillar.Prop].State = 0
+
 	pillar.Hero = ""
 	pillar.Teacher = ""
 	pillar.Prop = ""