diff --git a/services/spelling/app/js/ASpell.js b/services/spelling/app/js/ASpell.js
index 67b37c54f9..d6ec30dcf1 100644
--- a/services/spelling/app/js/ASpell.js
+++ b/services/spelling/app/js/ASpell.js
@@ -39,7 +39,7 @@ const cacheDump = setInterval(function() {
   return fs.writeFile(cacheFsPathTmp, dump, function(err) {
     if (err != null) {
       logger.log(OError.tag(err, 'error writing cache file'))
-      return fs.unlink(cacheFsPathTmp)
+      fs.unlink(cacheFsPathTmp, () => {})
     } else {
       fs.rename(cacheFsPathTmp, cacheFsPath, err => {
         if (err) {