I am compiling a class and it gives me this error:

S:\DotNetProjects\BizBoxMSObjects\AccessModuleBoundCollectionBase.cs(20): The keyword new is required on 'BizBoxMSObjects.AccessModuleBoundCollectionBase.this[int]' because it hides inherited member 'EnterpriseObjects.EntityBoundCollection.this[int]'

namespace BizBoxMSObjects
{    
    // EntityBoundCollection base implementation for  
    // table 'aps_accessmodules'
    // *DO NOT* add your modifications to this file
    public class AccessModuleBoundCollectionBase : EnterpriseObjects.EntityBoundCollection
    {
        
        public AccessModule this[int index]
        {
            get
            {
                return ((AccessModule)(this.EntitySet.GetEntity(this.TableIndex, index)));
            }
        }
    }
}

Any idea is highly appreciated.