relationship between two table reflect effect in distinct count

Hello Friends

I have two table

One is         second is

LEADID       CustomId

1                   4

2                   5

3                   2

4

5

6

i have one measure that is distinct count of LeadID i.e. 6 before defining relationship.

but when i define relationship in LEADID and CUSTOMID as REGULAR Relationship it gives me count 3..

BUt i need count of 6 .

Kindly suggest something needful.

Regards

BI_group