Miller was designated for assignment Friday when the Dodgers promoted Kenley Jansen. Miller had a 4.44 ERA in 19 games after his promotion May 27.
The Dodgers chose risking losing Miller through waivers over optioning down rookie Travis Schlichting.
The hard-throwing Jansen, meanwhile, has given manager Joe Torre a replacement for Ronald Belisario, who is working out at Dodger Stadium but still on the restricted list with what is reportedly substance abuse issues.
"[Jansen] gives us fewer days with nobody available," said Torre. "It's a little more of a safety net. He gives us something significant. He can alternate with [Hong-Chih] Kuo [setting up for Jonathan Broxton]. Hopefully that's the case, because it means we're in pretty good shape. That would be an ideal situation."
Torre said he hoped to give Kuo Wednesday and Thursday off after his two-inning outing Tuesday night.