diff --git a/autoload/airline/extensions/eclim.vim b/autoload/airline/extensions/eclim.vim
index 8a80813..18cbae5 100644
--- a/autoload/airline/extensions/eclim.vim
+++ b/autoload/airline/extensions/eclim.vim
@@ -20,7 +20,7 @@ function! airline#extensions#eclim#get_warnings()
 
   if !empty(eclimList)
     " Remove any non-eclim signs (see eclim#display#signs#Update)
-    call filter(eclimList, "v:val.name =~ '^\(qf_\)\?\(error\|info\|warning\)$'")
+      call filter(eclimList, 'v:val.name =~ "^\\(qf_\\)\\?\\(error\\|info\\|warning\\)$"')
 
     if !empty(eclimList)
       let errorsLine = eclimList[0]['line']