diff --git a/config.js b/config.js
index f0cb420..2144460 100644
--- a/config.js
+++ b/config.js
@@ -3,7 +3,8 @@ exports.styles = {
                 file        :   '../mapnik/performance_upgrade.xml',
                 "MAX_ZOOM"  :   18,
                 "MIN_ZOOM"  :   0,
-                expire      :   60*60*24    //seconds
+                expire      :   60*60*24,    //seconds
+                idleTimeoutMillis   :   1000*60*60 //milliseconds
                 }
 }
 
diff --git a/main.js b/main.js
index c4a196b..df1d56b 100644
--- a/main.js
+++ b/main.js
@@ -43,7 +43,7 @@ var acquire = function(id,options,callback) {
             obj.clear();
             delete obj;
        },
-       idleTimeoutMillis: 20000,
+       idleTimeoutMillis: options.idleTimeoutMillis || 20000,
     }
     maps.acquire(id, methods, function(obj) {
         callback(null, obj);
@@ -52,7 +52,7 @@ var acquire = function(id,options,callback) {
  
 function render(task, callback) {
 	
-    acquire(task.style.file,{}, function(err, map) {
+    acquire(task.style.file,{idleTimeoutMillis : task.style.idleTimeoutMillis}, function(err, map) {
         if(err) {
             console.log(err);
         }