diff --git a/lib/async.js b/lib/async.js
index 16e88c674..b90e3df7c 100755
--- a/lib/async.js
+++ b/lib/async.js
@@ -79,10 +79,10 @@
             async.nextTick = setImmediate;
         }
         else {
-            async.setImmediate = async.nextTick;
             async.nextTick = function (fn) {
                 setTimeout(fn, 0);
             };
+            async.setImmediate = async.nextTick;
         }
     }
     else {
@@ -136,12 +136,12 @@
                         callback(null);
                     }
                     else {
-                        iterate();
+                        async.setImmediate(iterate);
                     }
                 }
             });
         };
-        iterate();
+        async.setImmediate(iterate);
     };
     async.forEachSeries = async.eachSeries;