diff --git a/config/plugins/deoplete.vim b/config/plugins/deoplete.vim
index 4c288d9f621c..039d1e2ac5a8 100644
--- a/config/plugins/deoplete.vim
+++ b/config/plugins/deoplete.vim
@@ -104,7 +104,7 @@ let g:deoplete#ignore_sources.ocaml = ['buffer', 'around', 'omni']
 
 " public settings
 call deoplete#custom#set('_', 'matchers', ['matcher_full_fuzzy'])
-call deoplete#custom#set('file/include', 'matchers', 'matcher_head')
+call deoplete#custom#set('file/include', 'matchers', ['matcher_head'])
 let g:deoplete#ignore_sources._ = get(g:deoplete#ignore_sources, '_', ['around', 'LanguageClient'])
 for key in keys(g:deoplete#ignore_sources)
   if key != '_' && index(keys(get(g:, 'LanguageClient_serverCommands', {})), key) == -1