diff --git a/index.js b/index.js
index <HASH>..<HASH> 100644
--- a/index.js
+++ b/index.js
@@ -74,7 +74,7 @@ Queue.prototype.start = function (cb) {
 
   this.running = true
 
-  if (this.pending === this.concurrency) {
+  if (this.pending >= this.concurrency) {
     return
   }
Fix for "cannot update concurrency mid-process"