diff --git a/DatabasePdoPgsql.php b/DatabasePdoPgsql.php
index 45bb3b6..97b895c 100644
--- a/DatabasePdoPgsql.php
+++ b/DatabasePdoPgsql.php
@@ -3,8 +3,8 @@
 /**
  * PDO/PostgreSQL wrapper with (mostly) DatabaseMySQL interface :)
  * Select builder is inspired by MediaWiki's one.
- * Version: 2018-12-18
- * (c) Vitaliy Filippov, 2015-2018
+ * Version: 2019-06-03
+ * (c) Vitaliy Filippov, 2015-2019
  */
 
 if (!defined('MS_HASH'))
@@ -713,7 +713,7 @@ class DatabasePdoPgsql implements Database
                 }
                 foreach ($key as $i => &$k)
                 {
-                    if (is_intval($i))
+                    if (is_int($i))
                         $k = "$k = EXCLUDED.$k";
                     else
                         $k = "$i = ".str_replace('NEW.', 'EXCLUDED.', $k);