diff --git a/autoload/rhubarb.vim b/autoload/rhubarb.vim
index 2c01d12..26f52bc 100644
--- a/autoload/rhubarb.vim
+++ b/autoload/rhubarb.vim
@@ -65,8 +65,8 @@ endfunction
 function! s:credentials() abort
   if !exists('g:github_user')
     let g:github_user = $GITHUB_USER
-    if g:github_user ==# '' && exists('*FugitiveConfig')
-      let g:github_user = FugitiveConfig('github.user', '')
+    if g:github_user ==# '' && exists('*FugitiveConfigGet')
+      let g:github_user = FugitiveConfigGet('github.user', '')
     endif
     if g:github_user ==# ''
       let g:github_user = $LOGNAME
@@ -74,8 +74,8 @@ function! s:credentials() abort
   endif
   if !exists('g:github_password')
     let g:github_password = $GITHUB_PASSWORD
-    if g:github_password ==# '' && exists('*FugitiveConfig')
-      let g:github_password = FugitiveConfig('github.password', '')
+    if g:github_password ==# '' && exists('*FugitiveConfigGet')
+      let g:github_password = FugitiveConfigGet('github.password', '')
     endif
   endif
   return g:github_user.':'.g:github_password