diff --git a/app/Entities/Projects/Project.php b/app/Entities/Projects/Project.php
index d01cbfd..7dfc082 100755
--- a/app/Entities/Projects/Project.php
+++ b/app/Entities/Projects/Project.php
@@ -227,6 +227,21 @@ class Project extends Model
 
     public function getWorkDurationAttribute()
     {
-        return $this->present()->workDuration;
+        $startDate = $this->start_date;
+        $endDate = $this->end_date;
+
+        if (is_null($endDate)) {
+            return '-';
+        }
+
+        $workDuration = dateDifference($startDate, $endDate);
+
+        if ((int) $workDuration > 365) {
+            return dateDifference($startDate, $endDate, '%y Year(s) %m Month(s)');
+        } elseif ((int) $workDuration > 30) {
+            return dateDifference($startDate, $endDate, '%m Month(s) %d Day(s)');
+        }
+
+        return $workDuration.' Day(s)';
     }
 }
diff --git a/app/Entities/Projects/ProjectPresenter.php b/app/Entities/Projects/ProjectPresenter.php
index e0253e9..0678ba7 100644
--- a/app/Entities/Projects/ProjectPresenter.php
+++ b/app/Entities/Projects/ProjectPresenter.php
@@ -21,23 +21,4 @@ class ProjectPresenter extends Presenter
     {
         return ProjectStatus::getNameById($this->entity->status_id);
     }
-
-    public function workDuration()
-    {
-        $startDate = $this->entity->start_date;
-        $endDate = $this->entity->end_date;
-
-        if (is_null($endDate)) {
-            return '-';
-        }
-
-        $workDuration = dateDifference($startDate, $endDate);
-        if ((int) $workDuration > 365) {
-            return dateDifference($startDate, $endDate, '%y Year(s) %m Month(s) %d Day(s)');
-        } elseif ((int) $workDuration > 30) {
-            return dateDifference($startDate, $endDate, '%m Month(s) %d Day(s)');
-        }
-
-        return $workDuration.' Day(s)';
-    }
 }
diff --git a/tests/Unit/Models/ProjectTest.php b/tests/Unit/Models/ProjectTest.php
index b1af1cd..6fb19d3 100644
--- a/tests/Unit/Models/ProjectTest.php
+++ b/tests/Unit/Models/ProjectTest.php
@@ -229,6 +229,6 @@ class ProjectTest extends TestCase
             'end_date'   => '2017-07-21',
         ]);
 
-        $this->assertEquals('2 Year(s) 3 Month(s) 11 Day(s)', $project->work_duration);
+        $this->assertEquals('2 Year(s) 3 Month(s)', $project->work_duration);
     }
 }