Scott Rendell bagged a brace as Wycombe moved closer to League Two promotion with victory over Crewe.
Rendell notched his first when he headed in Andy Sandell's free-kick.
Clayton Donaldson missed the chance to equalise when his penalty was saved by Nikki Bull after Dave Winfield fouled Shaun Miller.
Rendell scored from the spot after Gareth Ainsworth was tripped before missing out on a hat-trick after half-time, Rhys Taylor saving his penalty.
Wycombe are in the final automatic promotion spot, one point above Shrewsbury.
Wycombe manager Gary Waddock told BBC Three Counties Radio:
"It was an important win for us, we needed the result and the players went about it in a professional manager.
"We were looking to get an early goal to calm our nerves but we didn't panic, we remained focussed and the players performed for the full 95 minutes.
"We've got a big game at Bury and then Southend and then we'll find out where we are."
Crewe manager Dario Gradi told BBC Radio Stoke:
"The penalties changed the game, they were strange penalties.
"We got a penalty in our favour, which was very debatable, and they got a penalty in their favour which was even more debatable.
"We've practiced and practiced penalties but we haven't got a really good penalty taker."