diff --git a/lib/util.js b/lib/util.js
index 6e2abfc9d5fe..5276c5dcec5f 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -151,7 +151,7 @@ const util = {
       for (var i in sourceFiles) {
         const sourceFile = sourceFiles[i]
         let destinationFile = output
-        if (fs.statSync(destinationFile).isDirectory()) {
+        if (fs.existsSync(destinationFile) && fs.statSync(destinationFile).isDirectory()) {
           destinationFile = path.join(destinationFile, path.basename(sourceFile))
         }