diff --git a/lib/build.js b/lib/build.js
index ac590436..04d65509 100644
--- a/lib/build.js
+++ b/lib/build.js
@@ -20,14 +20,12 @@ function haveBabelrc(functionsDir) {
 
   return (
     fs.existsSync(path.join(cwd, ".babelrc")) ||
-    functionsDir.split("/").reduce((foundBabelrc, dir) => {
-      if (foundBabelrc) return foundBabelrc;
-
+    functionsDir.split("/").some(dir => {
       const indexOf = functionsDir.indexOf(dir);
       const dirToSearch = functionsDir.substr(0, indexOf);
 
       return fs.existsSync(path.join(cwd, dirToSearch, ".babelrc"));
-    }, false)
+    })
   );
 }