diff --git a/lib/dao/dao.class.php b/lib/dao/dao.class.php
index 1622f91df6..5038f819fe 100755
--- a/lib/dao/dao.class.php
+++ b/lib/dao/dao.class.php
@@ -1527,7 +1527,22 @@ class sql
     {
         if($this->inCondition and !$this->conditionIsTrue) return $this;
 
-        $order = str_replace(array('|', '
', '_'), ' ', $order);
+        $order  = str_replace(array('|', '
', '_'), ' ', $order);
+
+        /* Add "`" in order. */
+        $orders = explode(',', $order);
+        foreach($orders as $i => $order)
+        {
+            $orderParse = explode(' ', trim($order));
+            foreach($orderParse as $key => $value)
+            {
+                $value = trim($value);
+                if(empty($value) or $value == 'desc' or $value == 'asc') continue;
+                $orderParse[$key] = "`" . trim($value, '`') . "`";
+            }
+            $orders[$i] = join(' ', $orderParse);
+        }
+        $order = join(',', $orders);
 
         $this->sql .= ' ' . DAO::ORDERBY . " $order";
         return $this;
diff --git a/module/common/control.php b/module/common/control.php
index 80913df9ee..fd35fbf04b 100644
--- a/module/common/control.php
+++ b/module/common/control.php
@@ -170,19 +170,19 @@ class common extends control
         {
             if(isset($order[1]) and $order[1] == 'asc')
             {
-                $orderBy   = "`{$order[0]}`_desc";
+                $orderBy   = "{$order[0]}_desc";
                 $className = 'headerSortDown';
             }
             else
             {
-                $orderBy = "`{$order[0]}`_asc";
+                $orderBy = "{$order[0]}_asc";
                 $className = 'headerSortUp';
             }
         }
         else
         {
             
-            $orderBy   = "`" . trim($fieldName, '`') . "`" . '_' . 'asc';
+            $orderBy   = "" . trim($fieldName, '`') . "" . '_' . 'asc';
             $className = 'header';
         }
         $link = helper::createLink($module, $method, sprintf($vars, $orderBy));