diff --git a/idiorm.php b/idiorm.php
index 73072e6f..0c36b6d9 100644
--- a/idiorm.php
+++ b/idiorm.php
@@ -410,7 +410,20 @@ protected static function _execute($query, $parameters = array(), $connection_na
             $statement = self::get_db($connection_name)->prepare($query);
             self::$_last_statement = $statement;
             $time = microtime(true);
-            $q = $statement->execute($parameters);
+
+            $count = count($parameters);
+            for ($i = 0; $i < $count; $i++) {
+                $type = PDO::PARAM_STR;
+                if (is_null($parameters[i])) $type = PDO::PARAM_NULL;
+                if (is_bool($parameters[i])) $type = PDO::PARAM_BOOL;
+                if (is_numeric($parameters[i])) {
+                    $type = PDO::PARAM_INT;
+                    $parameters[$i] = +($parameters[$i]);
+                }
+                $statement->bindParams($i + 1, $parameters[$i], $type);
+            }
+
+            $q = $statement->execute();
             self::_log_query($query, $parameters, $connection_name, (microtime(true)-$time));
 
             return $q;