Tesla chief executive Elon Musk is encouraging the automaker’s employees to ramp up their efforts as the company pushes to increase its delivery numbers for the third quarter of the year.

In an email sent to employees, Musk asked them to “go super hardcore” in a bid to make up for production challenges that it faced earlier in the quarter, Reuters reports.

“The end of quarter delivery wave is unusually high this time, as we suffered (like the whole industry) from extremely severe parts shortages earlier this quarter,” Musk said. He added that Tesla built “a lot of cars with missing parts that needed to be added later” throughout the quarter.

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“Early Q3 production was so challenging that we need to go super hardcore to make up for it over the next ~22 days to ensure a decent Q3 delivery number. This is the biggest wave in Tesla history, be we got to get it done,” Musk wrote.

Tesla is known for these ‘delivery waves’ towards the end of each quarter but interestingly, Musk added in his email that the automaker wants to reduce the size of its Q4 delivery wave, “allowing some Q4 production to spill over to deliver in Q1 [2022].”

In the second quarter of this year, Tesla produced 206,421 vehicles and made 201,250 deliveries, record numbers for the automaker. This was an increase from Q1, when it produced 180,338 vehicles and delivered 184,800, despite ongoing challenges presented by the semiconductor shortage.