diff --git a/htdocs/core/db/pgsql.class.php b/htdocs/core/db/pgsql.class.php
index 048ef2d450d55de2c5140d78ddb227f4d2a82f49..304006402c271f26cbc96993cc4a10cb0958cc6c 100644
--- a/htdocs/core/db/pgsql.class.php
+++ b/htdocs/core/db/pgsql.class.php
@@ -1093,7 +1093,7 @@ class DoliDBPgsql extends DoliDB
 	 */
 	function DDLDropField($table,$field_name)
 	{
-		$sql= "ALTER TABLE ".$table." DROP COLUMN `".$field_name."`";
+		$sql= "ALTER TABLE ".$table." DROP COLUMN ".$field_name;
 		dol_syslog($sql,LOG_DEBUG);
 		if (! $this->query($sql))
 		{