diff --git a/atom/common/lib/asar.coffee b/atom/common/lib/asar.coffee
index d2a7799fa694..e7f845bba928 100644
--- a/atom/common/lib/asar.coffee
+++ b/atom/common/lib/asar.coffee
@@ -254,7 +254,8 @@ exports.wrapFsWithAsar = (fs) ->
 
   openSync = fs.openSync
   readFileSync = fs.readFileSync
-  fs.readFileSync = (p, options) ->
+  fs.readFileSync = (p, opts) ->
+    options = opts # this allows v8 to optimize this function
     [isAsar, asarPath, filePath] = splitPath p
     return readFileSync.apply this, arguments unless isAsar