Shrewsbury goalkeeper Chris Weale fouled JP McGovern in the area on 68 minutes and Miller put United back on terms.
The game ended 2-2 but there was worse news for Carlisle with winger Matty Robson limping out of the game after only nine minutes with a suspected back problem
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A look ahead at the forecast for the Border region.
Artefacts uncovered from a Viking burial site in Cumwhitton have went on display in Carlisle's Tullie House thanks to a £50,000 grant
Members of the Lake District Ski Club, based on Raise Fell near Hellvelyn, have been taking the Alpine past time to Cumbria. See the pics: