diff --git a/service/spark/spark-ppt.go b/service/spark/spark-ppt.go
index e770849..508a75a 100644
--- a/service/spark/spark-ppt.go
+++ b/service/spark/spark-ppt.go
@@ -211,8 +211,8 @@ func SparkDoCreateOutline(userReq *proto.SparkCreateOutlineRequest, base *proto.
 	} else {
 		sessionName = userReq.Query
 	}
-	log.Println("spark create outline base info:", base)
-	err2, sessionID := service.CreateSession(base.UserID, proto.SessionTypeUserCreatePPT, sessionName)
+	log.Println("spark create outline base info:", *base)
+	err2, sessionID := service.CreateSession((*base).UserID, proto.SessionTypeUserCreatePPT, sessionName)
 	if err2 != nil {
 		log.Println("Create session error:", err2)
 		return proto.SparkCreateOutlineResponse{}, err2