diff --git a/module/task/lang/de.php b/module/task/lang/de.php
index 61dcf03b1f..f1d09af03a 100644
--- a/module/task/lang/de.php
+++ b/module/task/lang/de.php
@@ -202,7 +202,6 @@ $lang->task->error->totalNumber      = '"Total Cost" must be numbers.';
 $lang->task->error->consumedNumber   = '"Verbraucht" muss eine Zahl sein.';
 $lang->task->error->estimateNumber   = '"Stunden" müss eine Zahl sein.';
 $lang->task->error->recordMinus      = 'Work hours should not be negative number.';
-$lang->task->error->recordZero       = 'Work hours should not be zero.';
 $lang->task->error->consumedSmall    = '"Genutzt" muss larger than before.';
 $lang->task->error->consumedThisTime = 'Bitte geben Sie die Stunden an';
 $lang->task->error->left             = 'Bitte geben Sie die verbleibenden Stunden an"';
diff --git a/module/task/lang/en.php b/module/task/lang/en.php
index 6f7981cefd..d646b9e83d 100644
--- a/module/task/lang/en.php
+++ b/module/task/lang/en.php
@@ -202,7 +202,6 @@ $lang->task->error->totalNumber      = '"Total Cost" must be numbers.';
 $lang->task->error->consumedNumber   = '"Current Cost" must be numbers.';
 $lang->task->error->estimateNumber   = '"Estimates" must be numbers.';
 $lang->task->error->recordMinus      = 'Work hours should not be negative number.';
-$lang->task->error->recordZero       = 'Work hours should not be zero.';
 $lang->task->error->consumedSmall    = '"Total Cost" must be > the last number.';
 $lang->task->error->consumedThisTime = 'Please enter "Hours Cost"';
 $lang->task->error->left             = 'Please enter "Hours Left"';
diff --git a/module/task/lang/fr.php b/module/task/lang/fr.php
index a1448291eb..2f424052e4 100644
--- a/module/task/lang/fr.php
+++ b/module/task/lang/fr.php
@@ -202,7 +202,6 @@ $lang->task->error->totalNumber      = '"Total Cost" must be numbers.';
 $lang->task->error->consumedNumber   = '"Coût" doit être numérique.';
 $lang->task->error->estimateNumber   = '"Estimé" doit être numérique.';
 $lang->task->error->recordMinus      = 'Work hours should not be negative number.';
-$lang->task->error->recordZero       = 'Work hours should not be zero.';
 $lang->task->error->consumedSmall    = '"Coût Total" doit être > au dernier chiffre.';
 $lang->task->error->consumedThisTime = 'Entrez le "Coût en Heures"';
 $lang->task->error->left             = 'Entrez les "Heures Restantes"';
diff --git a/module/task/lang/vi.php b/module/task/lang/vi.php
index 0eff8d5593..575a36f394 100644
--- a/module/task/lang/vi.php
+++ b/module/task/lang/vi.php
@@ -202,7 +202,6 @@ $lang->task->error->totalNumber      = '"Total Cost" must be numbers.';
 $lang->task->error->consumedNumber   = '"Giờ làm" phải là số.';
 $lang->task->error->estimateNumber   = '"Dự tính" phải là số.';
 $lang->task->error->recordMinus      = 'Giờ làm không nên là số âm';
-$lang->task->error->recordZero       = 'Work hours should not be zero.';
 $lang->task->error->consumedSmall    = '"Tổng giờ làm" phải là > số cuối cùng.';
 $lang->task->error->consumedThisTime = 'Vui lòng nhập "Số giờ làm"';
 $lang->task->error->left             = 'Vui lòng nhập "Giờ còn lại"';
diff --git a/module/task/lang/zh-cn.php b/module/task/lang/zh-cn.php
index f0b22b71f6..5c28c04036 100644
--- a/module/task/lang/zh-cn.php
+++ b/module/task/lang/zh-cn.php
@@ -202,7 +202,6 @@ $lang->task->error->totalNumber      = '"总计消耗"必须为数字';
 $lang->task->error->consumedNumber   = '"本次消耗"必须为数字';
 $lang->task->error->estimateNumber   = '"预计剩余"必须为数字';
 $lang->task->error->recordMinus      = '工时不能为负数';
-$lang->task->error->recordZero       = '工时不能为零';
 $lang->task->error->consumedSmall    = '"总计消耗"必须大于之前消耗';
 $lang->task->error->consumedThisTime = '请填写"工时"';
 $lang->task->error->left             = '请填写"剩余"';
diff --git a/module/task/lang/zh-tw.php b/module/task/lang/zh-tw.php
index 7bde29e38c..40de616a4b 100644
--- a/module/task/lang/zh-tw.php
+++ b/module/task/lang/zh-tw.php
@@ -202,7 +202,6 @@ $lang->task->error->totalNumber      = '"總計消耗"必須為數字';
 $lang->task->error->consumedNumber   = '"本次消耗"必須為數字';
 $lang->task->error->estimateNumber   = '"預計剩餘"必須為數字';
 $lang->task->error->recordMinus      = '工時不能為負數';
-$lang->task->error->recordZero       = '工時不能為零';
 $lang->task->error->consumedSmall    = '"總計消耗"必須大於之前消耗';
 $lang->task->error->consumedThisTime = '請填寫"工時"';
 $lang->task->error->left             = '請填寫"剩餘"';
diff --git a/module/task/model.php b/module/task/model.php
index df7223bcb1..830b5146b4 100644
--- a/module/task/model.php
+++ b/module/task/model.php
@@ -27,11 +27,7 @@ class taskModel extends model
             dao::$errors[] = $this->lang->task->error->recordMinus;
             return false;
         }
-        elseif($this->post->estimate === '0')
-        {
-            dao::$errors[] = $this->lang->task->error->recordZero;
-            return false;
-        }
+
         $projectID  = (int)$projectID;
         $taskIdList = array();
         $taskFiles  = array();