diff --git a/packages/backend/migration/1669288094000-AddMovedToAndKnownAs.js b/packages/backend/migration/1669288094000-AddMovedToAndKnownAs.js
index 2f11d2d7a..8b3c770ac 100644
--- a/packages/backend/migration/1669288094000-AddMovedToAndKnownAs.js
+++ b/packages/backend/migration/1669288094000-AddMovedToAndKnownAs.js
@@ -3,7 +3,7 @@ export class addMovedToAndKnownAs1669288094000 {
 
 	async up(queryRunner) {
 			await queryRunner.query(`ALTER TABLE "user" ADD "movedToUri" character varying(512)`);
-			await queryRunner.query(`ALTER TABLE "user" ADD "alsoKnownAs" TEXT []`);
+			await queryRunner.query(`ALTER TABLE "user" ADD "alsoKnownAs" TEXT`);
 			await queryRunner.query(`COMMENT ON COLUMN "user"."movedToUri" IS 'The URI of the new account of the User'`);
 			await queryRunner.query(`COMMENT ON COLUMN "user"."alsoKnownAs" IS 'URIs the user is known as too'`);
 	}
diff --git a/packages/backend/src/models/entities/user.ts b/packages/backend/src/models/entities/user.ts
index 40ba3260e..3e406bdd7 100644
--- a/packages/backend/src/models/entities/user.ts
+++ b/packages/backend/src/models/entities/user.ts
@@ -69,6 +69,7 @@ export class User {
 	public followingCount: number;
 
 	@Column('varchar', {
+		length: 512,
 		nullable: true,
 		comment: 'The URI of the new account of the User',
 	})