DA 7800 Cable Adjusting Bolt Question

sonny73 Posts: 2,203
edited June 2011 in Workshop
Picked my bike up after a service today and the DA7800 front brake cable adjusting bolts' little metal washer, which sits on the inside of the top of the bolt, between the bolt and the cable housing, has come loose. Was going to pop back to the shop if need be, but all seems well.
Just wondering if this could cause issues?