diff --git a/lib/_stream_readable.js b/lib/_stream_readable.js
index 31b129facd3a38..0b5cac6b8376e3 100644
--- a/lib/_stream_readable.js
+++ b/lib/_stream_readable.js
@@ -721,7 +721,7 @@ Readable.prototype.pipe = function(dest, pipeOpts) {
 };
 
 function pipeOnDrain(src) {
-  return function() {
+  return function pipeOnDrainFunctionResult() {
     var state = src._readableState;
     debug('pipeOnDrain', state.awaitDrain);
     if (state.awaitDrain)
@@ -951,8 +951,8 @@ Readable.prototype.wrap = function(stream) {
   // important when wrapping filters and duplexes.
   for (var i in stream) {
     if (this[i] === undefined && typeof stream[i] === 'function') {
-      this[i] = function(method) {
-        return function() {
+      this[i] = function methodWrap(method) {
+        return function methodWrapReturnFunction() {
           return stream[method].apply(stream, arguments);
         };
       }(i);