Add var to declare loop index as local

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/async.js b/lib/async.js
index a39e8c1..a13f835 100755
--- a/lib/async.js
+++ b/lib/async.js
@@ -827,7 +827,7 @@
                 q.paused = false;
                 // Need to call q.process once per concurrent
                 // worker to preserve full concurrency after pause
-                for (w = 1; w <= q.concurrency; w++) {
+                for (var w = 1; w <= q.concurrency; w++) {
                     async.setImmediate(q.process);
                 }
             }