DataTypes.CHAR(2) generate char(255)

[balaturgija]

@PrimaryKey
@AllowNull(false)
@Column({ type: DataTypes.CHAR(2) })
isoCode: string;

I've decorated the primary key as shown in the example above. However, the migration file generates it as CHAR, and when I check in Postgres, the type is char(255).
I didn't have any other issues with migration generating except this. Am I missing something?