diff --git a/autoload/vimwiki/diary.vim b/autoload/vimwiki/diary.vim
index 5706285..45760ae 100644
--- a/autoload/vimwiki/diary.vim
+++ b/autoload/vimwiki/diary.vim
@@ -363,14 +363,15 @@ function! vimwiki#diary#generate_diary_section()
           " file and multiple H1 headers will be indented by shiftwidth
           call add(lines, repeat(' ', vimwiki#lst#get_list_margin()).bullet.entry)
 
+          let startindent = repeat(' ', vimwiki#lst#get_list_margin())
+          let indentstring = repeat(' ', vimwiki#u#sw())
+
           for [depth, subcap] in captions['rest']
             if empty(subcap)
               continue
             endif
             let entry = substitute(link_tpl, '__LinkUrl__', fl.'#'.subcap, '')
             let entry = substitute(entry, '__LinkDescription__', subcap, '')
-            let startindent = repeat(' ', vimwiki#lst#get_list_margin())
-            let indentstring = repeat(' ', vimwiki#u#sw())
             " if single H1 then depth H2=0, H3=1, H4=2, H5=3, H6=4
             " if multiple H1 then depth H1= 0, H2=1, H3=2, H4=3, H5=4, H6=5
             " indent subsequent headers levels by shiftwidth