diff --git a/migrate.go b/migrate.go
index a2e3a7f09..b9474c3f0 100644
--- a/migrate.go
+++ b/migrate.go
@@ -14,7 +14,7 @@ var (
 	ErrNoCurrentVersion = errors.New("no current version found")
 	ErrNoNextVersion    = errors.New("no next version found")
 
-	MaxVersion = 9223372036854775807 // max(int64)
+	MaxVersion int64 = 9223372036854775807 // max(int64)
 
 	goMigrations []*Migration
 )