brake booster leak

[b3nsonx]

Alright so my brake booster is leaking, it makes a loud hissing type noise everytime i apply the brakes, usually at low speeds and most of the time.
Is there a way to get rid of this noise without replacing the brake booster?
My booster still works fine, the pedal has been the same as it used to be, hasn't gotten harder to step on or anything.

[wrichards2005]

Check to see if the check valve is loose, or the hose that goes to the intake manifold.

Gotta be one of those two.

If the booster itself was hissing that would indicate it wasn't holding pressure, and wouldn't be operating normally.