diff --git a/18shilue/016/256.txt b/18shilue/016/256.txt
index c017e932d2eae6285adc01949062919bce6be812..4433c425f00e430aca0940fe489a21ec551feca7 100644
--- a/18shilue/016/256.txt
+++ b/18shilue/016/256.txt
@@ -43,7 +43,7 @@
 
 # text = 此乃所以爲姦邪也倘覺之豈有建中之亂乎泌有謀略而好談神仙詭誕故爲世所輕爲相未三歲而卒
 1	此	此	PRON	n,代名詞,指示,*	_	6	nsubj	_	Gloss=this|SpaceAfter=No
-2	乃	乃	ADV	v,副詞,時相,緊接	_	6	amod	_	Gloss=then|SpaceAfter=No
+2	乃	乃	ADV	v,副詞,時相,緊接	_	6	advmod	_	Gloss=then|SpaceAfter=No
 3	所	所	PART	p,助詞,接続,体言化	_	4	case	_	Gloss=that-which|SpaceAfter=No
 4	以	以	VERB	v,動詞,行為,動作	_	5	advmod	_	Gloss=use|SpaceAfter=No
 5	爲	爲	VERB	v,動詞,存在,存在	_	6	cop	_	Gloss=be|SpaceAfter=No