diff --git a/boot.php b/boot.php
index 79cf3e5b3..695f9e85c 100644
--- a/boot.php
+++ b/boot.php
@@ -43,7 +43,7 @@ define('FRIENDICA_PLATFORM',     'Friendica');
 define('FRIENDICA_CODENAME',     'Asparagus');
 define('FRIENDICA_VERSION',      '3.6-dev');
 define('DFRN_PROTOCOL_VERSION',  '2.23');
-define('DB_UPDATE_VERSION',      1236);
+define('DB_UPDATE_VERSION',      1237);
 define('NEW_UPDATE_ROUTINE_VERSION', 1170);
 
 /**
diff --git a/src/Database/DBStructure.php b/src/Database/DBStructure.php
index 8f879c032..7a6c3eaa7 100644
--- a/src/Database/DBStructure.php
+++ b/src/Database/DBStructure.php
@@ -996,7 +996,6 @@ class DBStructure {
 				"indexes" => array(
 						"PRIMARY" => array("id"),
 						"contactid" => array("contact-id"),
-						"gid" => array("gid"),
 						"gid_contactid" => array("UNIQUE", "gid", "contact-id"),
 						)
 				);
diff --git a/update.php b/update.php
index 6bb99af57..9701e9e39 100644
--- a/update.php
+++ b/update.php
@@ -1,6 +1,6 @@
 <?php
 
-define('UPDATE_VERSION' , 1236);
+define('UPDATE_VERSION' , 1237);
 
 use Friendica\Core\Config;
 use Friendica\Core\PConfig;