diff --git a/htdocs/core/db/sqlite3.class.php b/htdocs/core/db/sqlite3.class.php
index ddea58d7023..e7b422abc0e 100644
--- a/htdocs/core/db/sqlite3.class.php
+++ b/htdocs/core/db/sqlite3.class.php
@@ -407,7 +407,7 @@ class DoliDBSqlite3 extends DoliDB
 	{
 		global $conf, $dolibarr_main_db_readonly;
 
-		$ret = null;
+		$ret = false;
 
 		$query = trim($query);