diff --git a/autoload/latex.vim b/autoload/latex.vim
index bd9de31..264acf8 100644
--- a/autoload/latex.vim
+++ b/autoload/latex.vim
@@ -238,6 +238,13 @@ endfunction
 
 " {{{1 s:get_main_recurse
 function! s:get_main_recurse(file)
+  "
+  " Check if file is readable
+  "
+  if !filereadable(a:file)
+    return 0
+  endif
+
   "
   " Check if current file is a main file
   "