diff --git a/database/init.sql b/database/init.sql
index 9dc258b..1762f56 100644
--- a/database/init.sql
+++ b/database/init.sql
@@ -5,14 +5,14 @@ create table bilbil_asoul_video
     bvid       varchar(16)                 not null,
     aid        int unsigned                not null,
     name       varchar(32)                 null,
-    mid        bigint unsigned                not null,
-    face       varchar(255)                 not null,
+    mid        bigint unsigned             not null,
+    face       varchar(255)                not null,
     tid        int unsigned                not null,
     tname      varchar(32)                 not null,
     copyright  int unsigned                not null,
     title      varchar(128)                not null,
     `desc`     varchar(1024)               not null,
-    pic        varchar(255)                 not null,
+    pic        varchar(255)                not null,
     tag        varchar(128)                not null,
     pubdate    int unsigned                not null,
     duration   varchar(64)                 not null,
@@ -26,7 +26,9 @@ create table bilbil_asoul_video
     score      bigint unsigned default '0' not null,
     status     tinyint         default 1   not null,
     created_at bigint unsigned             not null,
-    updated_at bigint unsigned default '0' not null
+    updated_at bigint unsigned default '0' not null,
+    constraint bilbil_asoul_video_bvid_uindex
+        unique (bvid)
 );
 
 create index bilbil_asoul_video_bvid_index