washer fluid leaking

[bmw325is]

my washer fluid is slowly leaking out, not an extremely big deal to me, but its driving my obc nuts and i was wondering how to stop the leak. the leak is coming from the part where the plastic gauge sensor goes into the reservoir. so obviously i need to just get some sealant and seal that area. my problem is what sealant do i get? please help.

[ayton]

silicon will do the job just fine.