diff --git a/static/dbstructure.config.php b/static/dbstructure.config.php
index 4d061452b..833d809e7 100755
--- a/static/dbstructure.config.php
+++ b/static/dbstructure.config.php
@@ -692,7 +692,7 @@ return [
 			"unseen" => ["type" => "boolean", "not null" => "1", "default" => "1", "comment" => "item has not been seen"],
 			"mention" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "The owner of this item was mentioned in it"],
 			"forum_mode" => ["type" => "tinyint unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-			"psid" => ["type" => "int unsigned", "relation" => ["permissionset" => "id"], "comment" => "ID of the permission set of this post"],
+			"psid" => ["type" => "int unsigned", "foreign" => ["permissionset" => "id", "on delete" => "restrict"], "comment" => "ID of the permission set of this post"],
 			// It has to be decided whether these fields belong to the user or the structure
 			"resource-id" => ["type" => "varchar(32)", "not null" => "1", "default" => "", "comment" => "Used to link other tables to items, it identifies the linked resource (e.g. photo) and if set must also set resource_type"],
 			"event-id" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "relation" => ["event" => "id"], "comment" => "Used to link to the event.id"],
@@ -1187,7 +1187,7 @@ return [
 			"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
 			"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "Owner user id"],
 			"order" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "1", "comment" => "Field ordering per user"],
-			"psid" => ["type" => "int unsigned", "relation" => ["permissionset" => "id"], "comment" => "ID of the permission set of this profile field - 0 = public"],
+			"psid" => ["type" => "int unsigned", "foreign" => ["permissionset" => "id", "on delete" => "restrict"], "comment" => "ID of the permission set of this profile field - 0 = public"],
 			"label" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => "Label of the field"],
 			"value" => ["type" => "text", "comment" => "Value of the field"],
 			"created" => ["type" => "datetime", "not null" => "1", "default" => DBA::NULL_DATETIME, "comment" => "creation time"],