diff --git a/internal/op/room.go b/internal/op/room.go
index b14552d..5f5e2d3 100644
--- a/internal/op/room.go
+++ b/internal/op/room.go
@@ -411,11 +411,17 @@ func (r *Room) ApprovePendingMember(userID string) error {
 }
 
 func (r *Room) BanMember(userID string) error {
+	if r.IsCreator(userID) {
+		return errors.New("you are creator, cannot ban")
+	}
 	defer r.members.Delete(userID)
 	return db.RoomBanMember(r.ID, userID)
 }
 
 func (r *Room) UnbanMember(userID string) error {
+	if r.IsCreator(userID) {
+		return errors.New("you are creator, cannot unban")
+	}
 	defer r.members.Delete(userID)
 	return db.RoomUnbanMember(r.ID, userID)
 }
@@ -440,11 +446,17 @@ func (r *Room) RemoveAdminPermissions(userID string, permissions model.RoomAdmin
 }
 
 func (r *Room) SetAdmin(userID string, permissions model.RoomAdminPermission) error {
+	if r.IsCreator(userID) {
+		return errors.New("you are creator, cannot set admin")
+	}
 	defer r.members.Delete(userID)
 	return db.RoomSetAdmin(r.ID, userID, permissions)
 }
 
 func (r *Room) SetMember(userID string, permissions model.RoomMemberPermission) error {
+	if r.IsCreator(userID) {
+		return errors.New("you are creator, cannot set member")
+	}
 	defer r.members.Delete(userID)
 	return db.RoomSetMember(r.ID, userID, permissions)
 }
diff --git a/server/handlers/init.go b/server/handlers/init.go
index 220b932..18c89ab 100644
--- a/server/handlers/init.go
+++ b/server/handlers/init.go
@@ -195,9 +195,9 @@ func initRoom(room *gin.RouterGroup, needAuthUser *gin.RouterGroup, needAuthRoom
 
 		needAuthRoomAdmin.POST("/members/unban", RoomAdminUnbanMember)
 
-		needAuthRoomCreator.POST("/members/permissions", RoomSetMemberPermissions)
+		needAuthRoomCreator.POST("/members/member", RoomSetMember)
 
-		needAuthRoomCreator.POST("/members", RoomSetMember)
+		needAuthRoomCreator.POST("/members/member/permissions", RoomSetMemberPermissions)
 
 		needAuthRoomCreator.POST("/members/admin", RoomSetAdmin)