diff --git a/autoload/unite/sources/ultisnips.vim b/autoload/unite/sources/ultisnips.vim
index 747ae37..58b94c0 100644
--- a/autoload/unite/sources/ultisnips.vim
+++ b/autoload/unite/sources/ultisnips.vim
@@ -31,7 +31,7 @@ function! s:unite_source.action_table.expand.func(candidate)
   return ''
 endfunction
 
-function! s:unite_source.longest_snippet(snippet_list)
+function! s:unite_source.get_longest_snippet_len(snippet_list)
   let longest = 0
   for snip in items(a:snippet_list)
     if strlen(snip['word']) > longest
@@ -46,7 +46,7 @@ function! s:unite_source.gather_candidates(args, context)
         \  'ultisnips', 'unite__is_marked': 0, 'kind': 'command', 'is_matched': 1,
         \    'is_multiline': 0}
   let snippet_list = UltiSnips#SnippetsInCurrentScope()
-  let max_len = s:unite_source.longest_snippet(snippet_list)
+  let max_len = s:unite_source.get_longest_snippet_len(snippet_list)
   let canditates = []
   for snip in items(snippet_list)
     let curr_val = copy(default_val)