diff --git a/bundle/git.vim/autoload/git/branch.vim b/bundle/git.vim/autoload/git/branch.vim
index 940605a64..9ca811ef1 100644
--- a/bundle/git.vim/autoload/git/branch.vim
+++ b/bundle/git.vim/autoload/git/branch.vim
@@ -93,12 +93,14 @@ endfunction
 
 function! s:on_exit_show_branch(id, data, event) abort
   let pwd = get(s:job_pwds, 'jobid' . a:id, '')
-  if !has_key(s:branch_info, pwd)
+  if !has_key(s:branch_info, pwd) && !empty(pwd)
     let s:branch_info[pwd] = {}
   endif
-  call extend(s:branch_info[pwd], {
-        \ 'last_update_done' : localtime(),
-        \ })
+  if !empty(pwd)
+    call extend(s:branch_info[pwd], {
+          \ 'last_update_done' : localtime(),
+          \ })
+  endif
 endfunction
 
 function! git#branch#current(...) abort