diff --git a/lib/internal/cluster/shared_handle.js b/lib/internal/cluster/shared_handle.js
index 0d0a805709a010..088798597382f8 100644
--- a/lib/internal/cluster/shared_handle.js
+++ b/lib/internal/cluster/shared_handle.js
@@ -11,7 +11,7 @@ function SharedHandle(key, address, port, addressType, fd, flags) {
   this.handle = null;
   this.errno = 0;
 
-  var rval;
+  let rval;
   if (addressType === 'udp4' || addressType === 'udp6')
     rval = dgram._createSocketHandle(address, port, addressType, fd, flags);
   else