diff --git a/htdocs/core/modules/modReceiptPrinter.class.php b/htdocs/core/modules/modReceiptPrinter.class.php
index f761238213a..818c090dcc0 100644
--- a/htdocs/core/modules/modReceiptPrinter.class.php
+++ b/htdocs/core/modules/modReceiptPrinter.class.php
@@ -141,7 +141,7 @@ class modReceiptPrinter extends DolibarrModules
             "CREATE TABLE IF NOT EXISTS ".MAIN_DB_PREFIX."printer_receipt (rowid integer AUTO_INCREMENT PRIMARY KEY, name varchar(128), fk_type integer, fk_profile integer, parameter varchar(128), entity integer) ENGINE=innodb;",
             "CREATE TABLE IF NOT EXISTS ".MAIN_DB_PREFIX."printer_receipt_template (rowid integer AUTO_INCREMENT PRIMARY KEY, name varchar(128), template text, entity integer) ENGINE=innodb;",
         	"DELETE FROM ".MAIN_DB_PREFIX."printer_receipt_template WHERE name = '".$langs->trans('Example')."';",
-			"INSERT INTO ".MAIN_DB_PREFIX."printer_receipt_template (name,template,entity) VALUES ('".$langs->trans('Example')."', $templateexample, 1);",
+			"INSERT INTO ".MAIN_DB_PREFIX."printer_receipt_template (name,template,entity) VALUES ('".$langs->trans('Example')."', '".$templateexample."', 1);",
 		);
         return $this->_init($sql, $options);
     }