diff --git a/src/testdir/test_utf8.in b/src/testdir/test_utf8.in
index 8bc783e..1156342 100644
--- a/src/testdir/test_utf8.in
+++ b/src/testdir/test_utf8.in
@@ -17,6 +17,25 @@
 :	$put=strchars(str, 0)
 :	$put=strchars(str, 1)
 :endfor
+:" Test for customlist completion
+:function! CustomComplete1(lead, line, pos)
+:	return ['あ', 'い']
+:endfunction
+:command -nargs=1 -complete=customlist,CustomComplete1 Test1 :
+:call feedkeys(":Test1 \<C-L>'\<C-B>$put='\<CR>", 't')
+:
+:function! CustomComplete2(lead, line, pos)
+:	return ['あたし', 'あたま', 'あたりめ']
+:endfunction
+:command -nargs=1 -complete=customlist,CustomComplete2 Test2 :
+:call feedkeys(":Test2 \<C-L>'\<C-B>$put='\<CR>", 't')
+:
+:function! CustomComplete3(lead, line, pos)
+:	return ['Nこ', 'Nん', 'Nぶ']
+:endfunction
+:command -nargs=1 -complete=customlist,CustomComplete3 Test3 :
+:call feedkeys(":Test3 \<C-L>'\<C-B>$put='\<CR>", 't')
+:
 :call garbagecollect(1)
 :/^start:/,$wq! test.out
 ENDTEST
diff --git a/src/testdir/test_utf8.ok b/src/testdir/test_utf8.ok
index 8ccdd6d..c655922 100644
--- a/src/testdir/test_utf8.ok
+++ b/src/testdir/test_utf8.ok
@@ -17,3 +17,6 @@
 1
 1
 1
+Test1 
+Test2 あた
+Test3 N