diff --git a/models/Asset.php b/models/Asset.php
index b008bf5..c125b4e 100644
--- a/models/Asset.php
+++ b/models/Asset.php
@@ -264,7 +264,7 @@ class Asset
 			VALUES
 			(:id_user_uploaded, :subdir, :filename, :title, :slug, :mimetype,
 			 :image_width, :image_height,
-			 IF(:date_captured > 0, FROM_UNIXTIME(:date_captured), NULL),
+			 ' . (!empty($date_captured) ? 'FROM_UNIXTIME(:date_captured)' : 'NULL') . ',
 			 :priority)',
 			[
 				'id_user_uploaded' => isset($id_user) ? $id_user : Registry::get('user')->getUserId(),