diff --git a/packages/backend/migration/1704206095136-avatardecoration.js b/packages/backend/migration/1704206095136-avatardecoration.js
index 15e8f5a7c3..797d91a74e 100644
--- a/packages/backend/migration/1704206095136-avatardecoration.js
+++ b/packages/backend/migration/1704206095136-avatardecoration.js
@@ -2,7 +2,7 @@ export class Avatardecoration1704206095136 {
     name = 'Avatardecoration1704206095136'
 
     async up(queryRunner) {
-        await queryRunner.query(`ALTER TABLE "avatar_decoration" ADD "category" character varying(256) NOT NULL DEFAULT '{}'`);
+        await queryRunner.query(`ALTER TABLE "avatar_decoration" ADD "category" character varying(256) NOT NULL DEFAULT ''`);
     }
 
     async down(queryRunner) {