diff --git a/Sources/SQLiteMigrationManager.swift b/Sources/SQLiteMigrationManager.swift
index 6cf9dc0..9b5b2cf 100644
--- a/Sources/SQLiteMigrationManager.swift
+++ b/Sources/SQLiteMigrationManager.swift
@@ -1,6 +1,8 @@
 import Foundation
 import SQLite
 
+private typealias Expression = SQLite.Expression
+
 private struct MigrationDB {
   static let table = Table("schema_migrations")
   static let version = Expression<Int64>("version")