diff --git a/persistence/schema.sql b/persistence/schema.sql
index 5582e5b..ee68910 100644
--- a/persistence/schema.sql
+++ b/persistence/schema.sql
@@ -126,8 +126,8 @@ create table videos (rowid integer primary key,
     height integer not null,
     remote_url text not null unique,
     local_filename text not null unique,
-    thumbnail_remote_url text not null unique default "missing",
-    thumbnail_local_filename text not null unique default "missing",
+    thumbnail_remote_url text not null default "missing",
+    thumbnail_local_filename text not null default "missing",
     is_gif boolean default 0,
     is_downloaded boolean default 0,
 
diff --git a/persistence/versions.go b/persistence/versions.go
index b2f3c3f..b9d66e0 100644
--- a/persistence/versions.go
+++ b/persistence/versions.go
@@ -54,8 +54,8 @@ var MIGRATIONS = []string{
 	alter table tweets add column last_scraped_at integer not null default 0`,
 `update tombstone_types set tombstone_text = 'This Tweet is from a suspended account' where rowid = 2;
 	insert into tombstone_types (rowid, short_name, tombstone_text) values (5, 'violated', 'This Tweet violated the Twitter Rules'), (6, 'no longer exists', 'This Tweet is from an account that no longer exists')`,
-`alter table videos add column thumbnail_remote_url text not null unique default "missing";
-	alter table videos add column thumbnail_local_filename text not null unique default "missing"`,
+`alter table videos add column thumbnail_remote_url text not null default "missing";
+	alter table videos add column thumbnail_local_filename text not null default "missing"`,
 }
 
 /**