diff --git a/lib/fs.js b/lib/fs.js
index d71e31565fbad6..2d41f17e8d1de5 100644
--- a/lib/fs.js
+++ b/lib/fs.js
@@ -151,9 +151,7 @@ function makeStatsCallback(cb) {
   };
 }
 
-function isFd(path) {
-  return (path >>> 0) === path;
-}
+const isFd = isUint32;
 
 fs.Stats = Stats;