diff --git a/phpBB/install/database_update.php b/phpBB/install/database_update.php
index 7299c0aa2a..f0091ac995 100644
--- a/phpBB/install/database_update.php
+++ b/phpBB/install/database_update.php
@@ -177,11 +177,11 @@ $migrator = $phpbb_container->get('migrator');
 $migrator->create_migrations_table();
 
 $phpbb_extension_manager = $phpbb_container->get('ext.manager');
-$finder = $phpbb_extension_manager->get_finder();
 
-$migrations = $finder
+$migrations = $phpbb_extension_manager
+	->get_finder()
 	->core_path('phpbb/db/migration/data/')
-	->extension_directory('/migrations')
+	->extension_directory('/migration')
 	->get_classes();
 
 // @deprecated to be removed in 3.2 final
diff --git a/phpBB/phpbb/console/command/db/migrate.php b/phpBB/phpbb/console/command/db/migrate.php
index c3caae5f70..a25886fb82 100644
--- a/phpBB/phpbb/console/command/db/migrate.php
+++ b/phpBB/phpbb/console/command/db/migrate.php
@@ -117,8 +117,17 @@ class migrate extends \phpbb\console\command\command
 		$migrations = $this->extension_manager
 			->get_finder()
 			->core_path('phpbb/db/migration/data/')
+			->extension_directory('/migration')
+			->get_classes();
+
+		// @deprecated to be removed in 3.2 final
+		$migrations_deprecated = $this->extension_manager
+			->get_finder()
 			->extension_directory('/migrations')
 			->get_classes();
+
+		$migrations = array_merge($migrations, $migrations_deprecated);
+
 		$this->migrator->set_migrations($migrations);
 	}
 
diff --git a/phpBB/phpbb/extension/base.php b/phpBB/phpbb/extension/base.php
index e0ccb4c65b..9cd37ec8b2 100644
--- a/phpBB/phpbb/extension/base.php
+++ b/phpBB/phpbb/extension/base.php
@@ -132,9 +132,19 @@ class base implements \phpbb\extension\extension_interface
 
 		// Only have the finder search in this extension path directory
 		$migrations = $this->extension_finder
+			->extension_directory('/migration')
+			->find_from_extension($this->extension_name, $this->extension_path);
+
+		$migrations = $this->extension_finder->get_classes_from_files($migrations);
+
+		// @deprecated to be removed in 3.2 final
+		$migrations_deprecated = $this->extension_finder
 			->extension_directory('/migrations')
 			->find_from_extension($this->extension_name, $this->extension_path);
-		$migrations = $this->extension_finder->get_classes_from_files($migrations);
+
+		$migrations_deprecated = $this->extension_finder->get_classes_from_files($migrations_deprecated);
+
+		$migrations = array_merge($migrations, $migrations_deprecated);
 
 		return $migrations;
 	}