diff --git a/src/ColumnSortable/Sortable.php b/src/ColumnSortable/Sortable.php
index 69c43fe..0f3a624 100755
--- a/src/ColumnSortable/Sortable.php
+++ b/src/ColumnSortable/Sortable.php
@@ -144,7 +144,10 @@ public static function link(array $parameters) //Extending Blade; Blade sends ar
         }
 
         if (Input::get('sort') == $sortOriginal && in_array(Input::get('order'), ['asc', 'desc'])) {
-            $icon = $icon . '-' . Input::get('order');
+            $asc_suffix = Config::get('columnsortable.asc_suffix', '-asc');
+            $desc_suffix = Config::get('columnsortable.desc_suffix', '-desc');
+            
+            $icon = $icon . (Input::get('order') === 'asc' ? $asc_suffix : $desc_suffix);
         } else {
             $icon = Config::get('columnsortable.sortable_icon');
         }
diff --git a/src/config/columnsortable.php b/src/config/columnsortable.php
index f0d88fe..528564b 100755
--- a/src/config/columnsortable.php
+++ b/src/config/columnsortable.php
@@ -3,40 +3,50 @@
 return [
 
     /*
-    Spec columns.
+    spec columns
     */
     'columns' => [
-        'alpha_columns'    => [
+        'alpha'    => [
             'rows' => ['description', 'email', 'name', 'slug'],
             'class' => 'fa fa-sort-alpha',
         ],
-        'amount_columns'   => [
+        'amount'   => [
             'rows' => ['amount', 'price'],
             'class' => 'fa fa-sort-amount'
         ],
-        'numeric_columns'  => [
+        'numeric'  => [
             'rows' => ['created_at', 'updated_at', 'level', 'id', 'phone_number'],
             'class' => 'fa fa-sort-numeric'
         ],
     ],
 
     /*
-    Defines icon set to use when sorted data is none above.
+    defines icon set to use when sorted data is none above (alpha nor amount nor numeric)
     */
     'default_icon_set' => 'fa fa-sort',
 
     /*
-    Icon that shows when generating sortable link while column is not sorted.
+    icon that shows when generating sortable link while column is not sorted
     */
     'sortable_icon'    => 'fa fa-sort',
 
     /*
-    Default anchor class, if value is null none is added. (must be type of null)
+    suffix class that is appended when ascending order is applied
+    */
+    'asc_suffix'        => '-asc',
+
+    /*
+    suffix class that is appended when descending order is applied
+    */
+    'desc_suffix'       => '-desc',
+
+    /*
+    default anchor class, if value is null none is added
     */
     'anchor_class'      => null,
 
     /*
-    Relation - column separator. ex: detail.phone_number means relation "detail" and column "phone_number".
+    relation - column separator. ex: detail.phone_number means relation "detail" and column "phone_number"
      */
     'uri_relation_column_separator' => '.'