diff --git a/Model/KindModel.php b/Model/KindModel.php
index 2e2b7a1..21162af 100644
--- a/Model/KindModel.php
+++ b/Model/KindModel.php
@@ -93,14 +93,13 @@ class KindModel extends Database
 
         foreach ($data as $index => $value) {
             $sql .= $index . ", ";
-            $params[":" + $index] = $index;
         }
 
         $sql = substr($sql, 0, strlen($sql) - 2) . ") VALUES (";
 
         foreach ($data as $value) {
             $sql .= ":" . $value . " ,";
-            $params[":" + $value] = $value;
+            $params[":" . $value] = $value;
         }
 
         $sql = substr($sql, 0, strlen($sql) - 2) . ");";