diff --git a/.gitignore b/.gitignore
index b02f491..a1e1aa4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@ coverage/
 demo/
 apidoc/
 *.log
+.DS_Store
diff --git a/benchmark/benchmark.js b/benchmark/benchmark.js
index 6fe04ae..201da83 100755
--- a/benchmark/benchmark.js
+++ b/benchmark/benchmark.js
@@ -16,6 +16,7 @@ var IMPLS = [];
 
 
 fs.readdirSync(IMPLS_DIRECTORY).sort().forEach(function (name) {
+  if (name === '.DS_Store') { return; }
   var file = path.join(IMPLS_DIRECTORY, name);
   var code = require(file);