diff --git a/database.sql b/database.sql
index 3b9cceb069..8ae1b913b5 100644
--- a/database.sql
+++ b/database.sql
@@ -1349,23 +1349,6 @@ CREATE TABLE IF NOT EXISTS `profile` (
 	FOREIGN KEY (`uid`) REFERENCES `user` (`uid`) ON UPDATE RESTRICT ON DELETE CASCADE
 ) DEFAULT COLLATE utf8mb4_general_ci COMMENT='user profiles data';
 
---
--- TABLE profile_check
---
-CREATE TABLE IF NOT EXISTS `profile_check` (
-	`id` int unsigned NOT NULL auto_increment COMMENT 'sequential ID',
-	`uid` mediumint unsigned NOT NULL DEFAULT 0 COMMENT 'User id',
-	`cid` int unsigned NOT NULL DEFAULT 0 COMMENT 'contact.id',
-	`dfrn_id` varchar(255) NOT NULL DEFAULT '' COMMENT '',
-	`sec` varchar(255) NOT NULL DEFAULT '' COMMENT '',
-	`expire` int unsigned NOT NULL DEFAULT 0 COMMENT '',
-	 PRIMARY KEY(`id`),
-	 INDEX `uid` (`uid`),
-	 INDEX `cid` (`cid`),
-	FOREIGN KEY (`uid`) REFERENCES `user` (`uid`) ON UPDATE RESTRICT ON DELETE CASCADE,
-	FOREIGN KEY (`cid`) REFERENCES `contact` (`id`) ON UPDATE RESTRICT ON DELETE CASCADE
-) DEFAULT COLLATE utf8mb4_general_ci COMMENT='DFRN remote auth use';
-
 --
 -- TABLE profile_field
 --
diff --git a/doc/database.md b/doc/database.md
index b1274ed327..194f30eb6e 100644
--- a/doc/database.md
+++ b/doc/database.md
@@ -59,7 +59,6 @@ Database Tables
 | [post-user-notification](help/database/db_post-user-notification) | User post notifications |
 | [process](help/database/db_process) | Currently running system processes |
 | [profile](help/database/db_profile) | user profiles data |
-| [profile_check](help/database/db_profile_check) | DFRN remote auth use |
 | [profile_field](help/database/db_profile_field) | Custom profile fields |
 | [push_subscriber](help/database/db_push_subscriber) | Used for OStatus: Contains feed subscribers |
 | [register](help/database/db_register) | registrations requiring admin approval |
diff --git a/doc/database/db_profile_check.md b/doc/database/db_profile_check.md
deleted file mode 100644
index 4049bd6048..0000000000
--- a/doc/database/db_profile_check.md
+++ /dev/null
@@ -1,35 +0,0 @@
-Table profile_check
-===========
-
-DFRN remote auth use
-
-Fields
-------
-
-| Field   | Description   | Type               | Null | Key | Default | Extra          |
-| ------- | ------------- | ------------------ | ---- | --- | ------- | -------------- |
-| id      | sequential ID | int unsigned       | NO   | PRI | NULL    | auto_increment |
-| uid     | User id       | mediumint unsigned | NO   |     | 0       |                |
-| cid     | contact.id    | int unsigned       | NO   |     | 0       |                |
-| dfrn_id |               | varchar(255)       | NO   |     |         |                |
-| sec     |               | varchar(255)       | NO   |     |         |                |
-| expire  |               | int unsigned       | NO   |     | 0       |                |
-
-Indexes
-------------
-
-| Name    | Fields |
-| ------- | ------ |
-| PRIMARY | id     |
-| uid     | uid    |
-| cid     | cid    |
-
-Foreign Keys
-------------
-
-| Field | Target Table | Target Field |
-|-------|--------------|--------------|
-| uid | [user](help/database/db_user) | uid |
-| cid | [contact](help/database/db_contact) | id |
-
-Return to [database documentation](help/database)
diff --git a/src/Database/DBStructure.php b/src/Database/DBStructure.php
index c002c277c2..d7f1179d02 100644
--- a/src/Database/DBStructure.php
+++ b/src/Database/DBStructure.php
@@ -82,7 +82,7 @@ class DBStructure
 		$old_tables = ['fserver', 'gcign', 'gcontact', 'gcontact-relation', 'gfollower' ,'glink', 'item-delivery-data',
 			'item-activity', 'item-content', 'item_id', 'participation', 'poll', 'poll_result', 'queue', 'retriever_rule',
 			'deliverq', 'dsprphotoq', 'ffinder', 'sign', 'spam', 'term', 'user-item', 'thread', 'item', 'challenge',
-			'auth_codes', 'clients', 'tokens'];
+			'auth_codes', 'clients', 'tokens', 'profile_check'];
 
 		$tables = DBA::selectToArray(['INFORMATION_SCHEMA' => 'TABLES'], ['TABLE_NAME'],
 			['TABLE_SCHEMA' => DBA::databaseName(), 'TABLE_TYPE' => 'BASE TABLE']);
diff --git a/src/Worker/OptimizeTables.php b/src/Worker/OptimizeTables.php
index 41c5b4a756..954b89702b 100644
--- a/src/Worker/OptimizeTables.php
+++ b/src/Worker/OptimizeTables.php
@@ -44,7 +44,6 @@ class OptimizeTables
 		DBA::e("OPTIMIZE TABLE `locks`");
 		DBA::e("OPTIMIZE TABLE `oembed`");
 		DBA::e("OPTIMIZE TABLE `parsed_url`");
-		DBA::e("OPTIMIZE TABLE `profile_check`");
 		DBA::e("OPTIMIZE TABLE `session`");
 
 		Logger::info('Optimize end');
diff --git a/static/dbstructure.config.php b/static/dbstructure.config.php
index 24ae1bb05c..ded539af50 100644
--- a/static/dbstructure.config.php
+++ b/static/dbstructure.config.php
@@ -1368,22 +1368,6 @@ return [
 			"pub_keywords" => ["FULLTEXT", "pub_keywords"],
 		]
 	],
-	"profile_check" => [
-		"comment" => "DFRN remote auth use",
-		"fields" => [
-			"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => "sequential ID"],
-			"uid" => ["type" => "mediumint unsigned", "not null" => "1", "default" => "0", "foreign" => ["user" => "uid"], "comment" => "User id"],
-			"cid" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "foreign" => ["contact" => "id"], "comment" => "contact.id"],
-			"dfrn_id" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-			"sec" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
-			"expire" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => ""],
-		],
-		"indexes" => [
-			"PRIMARY" => ["id"],
-			"uid" => ["uid"],
-			"cid" => ["cid"],
-		]
-	],
 	"profile_field" => [
 		"comment" => "Custom profile fields",
 		"fields" => [
diff --git a/update.php b/update.php
index 84f895838b..842fefca88 100644
--- a/update.php
+++ b/update.php
@@ -446,7 +446,7 @@ function pre_update_1364()
 		return Update::FAILED;
 	}
 
-	if (!DBA::e("DELETE FROM `profile_check` WHERE NOT `uid` IN (SELECT `uid` FROM `user`)")) {
+	if (DBStructure::existsTable('profile_check') && !DBA::e("DELETE FROM `profile_check` WHERE NOT `uid` IN (SELECT `uid` FROM `user`)")) {
 		return Update::FAILED;
 	}
 
@@ -498,7 +498,7 @@ function pre_update_1364()
 		return Update::FAILED;
 	}
 
-	if (!DBA::e("DELETE FROM `profile_check` WHERE NOT `cid` IN (SELECT `id` FROM `contact`)")) {
+	if (DBStructure::existsTable('profile_check') && !DBA::e("DELETE FROM `profile_check` WHERE NOT `cid` IN (SELECT `id` FROM `contact`)")) {
 		return Update::FAILED;
 	}