(Reuters) – Domino’s Pizza Inc (NYSE:) missed Wall Street’s quarterly U.S. sales estimates on Thursday. This was due to a widening reopening for dine-in and labor shortages.

In premarket trading, the shares fell 8%

U.S. restaurants are having difficulty keeping their employees from moving to higher-paying positions in the recent months. Domino’s offered consumers $3 off their online order, due to labor shortages during quarter.

Domino’s chief executive officer Ritch Allison stated in a statement that they faced “a lot of headwinds” during the quarter.

From $117.8million, which was $3 per share a year ago, net income dropped to $91 million or $2.50 per shares in the first quarter.

According to Refinitiv, analysts had forecasted a decline of 0.6% for the U.S.’ largest pizza chain. However, it reported that U.S. Same-Store Sales fell 3.6%.