diff --git a/lib/helpers.js b/lib/helpers.js
index 2405c5f..b83f799 100644
--- a/lib/helpers.js
+++ b/lib/helpers.js
@@ -21,5 +21,5 @@ exports.isGitURL = function (str) {
  */
 
 exports.isBinaryFile = function (src) {
-  return isBinaryFile(src);
+  return isBinaryFile.sync(src);
 }