diff --git a/phpBB/phpbb/db/doctrine/postgresql_platform.php b/phpBB/phpbb/db/doctrine/postgresql_platform.php
index ea637b4203..28f846de03 100644
--- a/phpBB/phpbb/db/doctrine/postgresql_platform.php
+++ b/phpBB/phpbb/db/doctrine/postgresql_platform.php
@@ -78,6 +78,36 @@ class postgresql_platform extends PostgreSQL94Platform
 		return AbstractPlatform::getDefaultValueDeclarationSQL($column);
 	}
 
+    /**
+     * {@inheritDoc}
+     */
+    public function getAlterTableSQL(TableDiff $diff)
+    {
+		$sql = parent::getAlterTableSQL($diff);
+		$table_name = $diff->getOldTable()->getName();
+		$columns = array_merge($diff->getAddedColumns(), $diff->getModifiedColumns());
+		$post_sql = $sequence_sql = [];
+
+		foreach ($columns as $column)
+		{
+			$column_name = $column->getName();
+			if (!empty($column->getAutoincrement()))
+			{
+				$sequence = new Sequence($this->getIdentitySequenceName($table_name, $column_name));
+				$sequence_sql[] = $this->getCreateSequenceSQL($sequence);
+				$post_sql[] = 'ALTER SEQUENCE '.$sequence->getName().' OWNED BY ' . $table_name . '.' . $column_name;
+			}
+		}
+		$sql = array_merge($sequence_sql, $sql, $post_sql);
+
+		foreach ($sql as $i => $query)
+		{
+			$sql[$i] = str_replace('{{placeholder_sequence}}', "nextval('{$table_name}_seq')", $query);
+		}
+
+		return $sql;
+	}
+
 	/**
 	 * {@inheritDoc}
 	 */
diff --git a/tests/dbal/migration/schema_add_autoincrement.php b/tests/dbal/migration/schema_add_autoincrement.php
new file mode 100644
index 0000000000..4e3ecff183
--- /dev/null
+++ b/tests/dbal/migration/schema_add_autoincrement.php
@@ -0,0 +1,43 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+class schema_add_autoincrement extends \phpbb\db\migration\migration
+{
+	function update_schema()
+	{
+		return [
+			'add_tables' => [
+				$this->table_prefix . 'noid' => [
+					'COLUMNS' => [
+						'text' => ['VCHAR:50', ''],
+					],
+				],
+			],
+
+			'add_columns' => [
+				$this->table_prefix . 'noid' => [
+					'id' => ['UINT:3', null, 'auto_increment'],
+				],
+			],
+		];
+	}
+
+	function revert_schema()
+	{
+		return [
+			'drop_tables'	=> [
+				$this->table_prefix . 'noid',
+			],
+		];
+	}
+}
diff --git a/tests/dbal/migrator_test.php b/tests/dbal/migrator_test.php
index 5d16fa63ee..540dc85aba 100644
--- a/tests/dbal/migrator_test.php
+++ b/tests/dbal/migrator_test.php
@@ -24,6 +24,7 @@ require_once __DIR__ . '/migration/revert_table_with_dependency.php';
 require_once __DIR__ . '/migration/fail.php';
 require_once __DIR__ . '/migration/installed.php';
 require_once __DIR__ . '/migration/schema.php';
+require_once __DIR__ . '/migration/schema_add_autoincrement.php';
 
 class phpbb_dbal_migrator_test extends phpbb_database_test_case
 {
@@ -416,4 +417,24 @@ class phpbb_dbal_migrator_test extends phpbb_database_test_case
 		$this->assertFalse($this->db_tools->sql_column_exists('phpbb_config', 'test_column1'));
 		$this->assertFalse($this->db_tools->sql_table_exists('phpbb_foobar'));
 	}
+
+	public function test_add_autoincrement_column()
+	{
+		$this->migrator->set_migrations(['schema_add_autoincrement']);
+
+		while (!$this->migrator->finished())
+		{
+			$this->migrator->update();
+		}
+
+		$this->assertTrue($this->db_tools->sql_table_exists('phpbb_noid'));
+		$this->assertTrue($this->db_tools->sql_column_exists('phpbb_noid', 'id'));
+
+		while ($this->migrator->migration_state('schema_add_autoincrement'))
+		{
+			$this->migrator->revert('schema_add_autoincrement');
+		}
+
+		$this->assertFalse($this->db_tools->sql_table_exists('phpbb_noid'));
+	}
 }