diff --git a/src/node/utils/Minify.js b/src/node/utils/Minify.js
index a16e480a..21715ba0 100644
--- a/src/node/utils/Minify.js
+++ b/src/node/utils/Minify.js
@@ -285,8 +285,10 @@ function statFile(filename, callback) {
         } else {
           callback(error);
         }
-      } else {
+      } else if (stats.isFile()) {
         callback(null, stats.mtime.getTime(), true);
+      } else {
+        callback(null, stats.mtime.getTime(), false);
       }
     });
   }