diff --git a/autoload/vundle/installer.vim b/autoload/vundle/installer.vim
index 24bf77b..e0fbdda 100644
--- a/autoload/vundle/installer.vim
+++ b/autoload/vundle/installer.vim
@@ -58,7 +58,7 @@ func! s:has_doc(rtp) abort
 endf
 
 func! s:helptags(rtp) abort
-  helptags `=a:rtp.'/doc'`
+  helptags `=a:rtp.'/doc/'`
 endf
 
 func! s:sync(bang, bundle) abort
diff --git a/test/vimrc b/test/vimrc
index bcd58d1..172679e 100644
--- a/test/vimrc
+++ b/test/vimrc
@@ -38,6 +38,8 @@ Bundle 'vim-scripts/RubySinatra'
 
 filetype plugin indent on      " Automatically detect file types.
 
+set wildignore+=doc              " should not break helptags
+
 BundleInstall
 
 func! s:assert_bundles() abort