diff --git a/module/durationestimation/config.php b/module/durationestimation/config.php
index 14492e4944..8a42d3deee 100644
--- a/module/durationestimation/config.php
+++ b/module/durationestimation/config.php
@@ -2,3 +2,5 @@
 $config->durationestimation = new stdclass();
 $config->durationestimation->index = new stdclass();
 $config->durationestimation->index->requiredFields = 'scale,productivity,scale,duration,unitLaborCost,totalLaborCost';
+
+$config->durationestimation->workloadTotal = 100;
diff --git a/module/durationestimation/control.php b/module/durationestimation/control.php
index e9d8998aeb..2cbb6f2a0f 100644
--- a/module/durationestimation/control.php
+++ b/module/durationestimation/control.php
@@ -50,7 +50,9 @@ class durationestimation extends control
         {
             $total = 0;
             foreach($this->post->workload as $value) $total += $value;
-            if($total != 100) $this->send(array('result' => 'fail', 'message' => $this->lang->durationestimation->workloadError));
+
+            $workloadTotal = $this->config->durationestimation->workloadTotal;
+            if($total != $workloadTotal) $this->send(array('result' => 'fail', 'message' => $this->lang->durationestimation->workloadError));
 
             $this->durationestimation->save($programID);