diff --git a/README.md b/README.md
index 9feddc99..39a9d9c7 100644
--- a/README.md
+++ b/README.md
@@ -354,6 +354,7 @@ The export server can also be used as a node module to simplify integrations:
     * `initialWorkers` (default 5) - initial worker process count
     * `workLimit` (default 50) - how many task can be performed by a worker process before it's automatically restarted
     * `queueSize` (default 5) - how many request can be stored in overflow count when there are not enough workers to handle all requests
+    * `timeoutThreshold` (default 3500) - the maximum allowed time for each export job execution, in milliseconds. If a worker has been executing a job for longer than this period, it will be restarted
   * `killPool()`: kill the phantom processes
 
 ## Using Ajax in Injected Resources
diff --git a/lib/phantompool.js b/lib/phantompool.js
index b7ed24d3..8657a3c9 100644
--- a/lib/phantompool.js
+++ b/lib/phantompool.js
@@ -296,7 +296,7 @@ function init(config) {
 
     settings = {
         queueSize: config.queueSize || 5,
-        timeoutThreshold: 3500,
+        timeoutThreshold: config.timeoutThreshold || 3500,
         maxWorkers: config.maxWorkers || 8,
         initialWorkers: config.initialWorkers || config.maxWorkers || 8,
         worker: config.worker || __dirname + '/../phantom/worker.js',