diff --git a/pkg/database/migrations/001_inital_database.sql b/pkg/database/migrations/001_inital_database.sql
index 5c669b6..a8749bf 100644
--- a/pkg/database/migrations/001_inital_database.sql
+++ b/pkg/database/migrations/001_inital_database.sql
@@ -62,7 +62,7 @@ CREATE TABLE "PostReference"
     preview_file_url TEXT,
     sample_file_url  TEXT,
     source_post_id   TEXT,
-    PRIMARY KEY (post_id, source_id)
+    PRIMARY KEY (post_id, source_id, url)
 );
 
 CREATE TABLE "TagAlias"