diff --git a/config/db_schema.pgsql b/config/db_schema.pgsql
index b7a556bd..11bf6d56 100644
--- a/config/db_schema.pgsql
+++ b/config/db_schema.pgsql
@@ -94,10 +94,11 @@ INSERT INTO ocp_system_config (assoc_id, name, "desc") values (1,'System 0','Def
 CREATE SEQUENCE ocp_tools_config_id_seq;
 CREATE TABLE ocp_tools_config (
   id integer Primary KEY DEFAULT nextval('ocp_tools_config_id_seq'),
-  module text NOT NULL UNIQUE,
-  param text NOT NULL UNIQUE,
+  module text NOT NULL,
+  param text NOT NULL,
   value text DEFAULT NULL,
-  box_id text DEFAULT '' UNIQUE
+  box_id text DEFAULT '',
+  UNIQUE(module, param, box_id)
 );
 
 -- --------------------------------------------------------
diff --git a/web/tools/admin/tools_config/tools_config.php b/web/tools/admin/tools_config/tools_config.php
index a423f6a6..c868903a 100644
--- a/web/tools/admin/tools_config/tools_config.php
+++ b/web/tools/admin/tools_config/tools_config.php
@@ -80,7 +80,13 @@
 					}
 					continue;
 				}
-				$sql = "INSERT INTO ".$table." (module, param, value) VALUES (?,?,?) ON DUPLICATE KEY UPDATE module=?,param=?,value=?";
+
+				if ($config->db_driver == "mysql") {
+					$sql = "INSERT INTO ".$table." (module, param, value) VALUES (?,?,?) ON DUPLICATE KEY UPDATE module=?,param=?,value=?";
+				} else if ($config->db_driver == "pgsql") {
+					$sql = "INSERT INTO ".$table." (module, param, value) VALUES (?,?,?) ON CONFLICT(module, param, box_id) DO UPDATE SET module=?,param=?,value=?";
+				}
+
 				$stm = $link->prepare($sql);
 				if ($stm === false) {
 					die('Failed to issue query ['.$sql.'], error message : ' . print_r($link->errorInfo(), true));