diff --git a/autoload/fugitive.vim b/autoload/fugitive.vim
index 5082f82..5437c7f 100644
--- a/autoload/fugitive.vim
+++ b/autoload/fugitive.vim
@@ -4513,7 +4513,7 @@ function! s:BlurStatus() abort
       belowright new
     endif
     if &diff
-      call s:DiffClose()
+      call fugitive#DiffClose()
     endif
   endif
 endfunction